News & Views

|
November 17th, 2017|

Center for Climate and Life Fellow Featured in National Geographic

A reporter from National Geographic joined paleoclimatologist Billy D’Andrea and his colleagues for an expedition to gather vital climate data in the Norwegian Arctic.

|
November 16th, 2017|

Lamont to Harvest Sunshine from Solar Farm

Two solar arrays in Upstate New York will be up and ready at the end of November, poised to provide power and to help to reduce the Lamont campus’ carbon footprint.

|
November 13th, 2017|

Where Is All That Carbon Dioxide Going?

Concurrent with the announcement that human carbon emissions reached a new peak this year, Galen McKinley, a researcher at Lamont-Doherty, discusses the difficulties of tracking the sources and destinations of carbon dioxide.

Categories: Uncategorized
|
Nov 6, 2017|

NASA Finds New Way to Track Smog by Satellite

Researchers have devised a way to use satellite measurements to predict when and where ozone will form. This may help assess the most effective approaches to reduce emissions and improve air quality.

Categories: Uncategorized
|
Nov 3, 2017|

National Climate Report: Q&A With Authors

Radley Horton and Timothy Hall, two Columbia University climate scientists who contributed to the new Climate Science Special Report, discuss its scientific findings.

|
Nov 2, 2017|

WATCH: Top Scientists Speak at Columbia Climate Clinic

Columbia University climate scientists Peter de Menocal, director of the Center for Climate and Life, Radley Horton, and Kate Marvel discuss climate science and solutions.

|
Nov 1, 2017|

Giant Boulders on Bahamas Coast Are Evidence of Ancient Storms and Sea Level, Says Study

Storms of intensities seen today, combined with a few meters increase in sea level, were enough to transport massive coastal boulders more than 100,000 years ago.

|
October 31st, 2017|

By 2100, Climate Change Could Alter Key Microbial Interactions in the Ocean

The warmer, more acidic waters caused by climate change influence the behavior of tiny marine organisms essential to ocean health.

|
October 31st, 2017|

In Biblical Land, Searching for Droughts Past and Future

The landlocked are surrounding the Dead Sea suffered long megadroughts in the past. Now, climate change threatens to inflict such conditions again on this already sere, volatile region.

|
October 26th, 2017|

Improving Science-based Tools for Fire Prediction

During a conference at Columbia University, scientists pinpointed areas where advances in fire prediction can be made within the next decade.

|
October 24th, 2017|

Ice Sheets May Melt Rapidly in Response to Distant Volcanoes

Volcanic eruptions have been known to cool global climate, but they can also exacerbate the melting of ice sheets, says a new study.

|
October 23rd, 2017|

Under the Sea Ice, Behold the Ancient Arctic Jellyfish

A video filmed by Lamont marine biologist Andy Juhl reveals mature jellyfish under the Arctic sea ice, where they aren’t supposed to be.

Categories: Uncategorized
|
October 11th, 2017|

Report: The Near-term Impacts of Climate Change on Investors

A new white paper explores how advances in climate science can inform near-term investments in the global economy.

|
October 5th, 2017|

Ancient Humans Left Africa to Escape Drying Climate, Says Study

Humans migrated out of Africa to escape a drying climate, about 60,000 years ago, according to a new study in the journal Geology.

|
October 3rd, 2017|

Mumbai May Be Vulnerable to Future Hurricanes

If a serious cyclone were to strike Mumbai, the results could be catastrophic, says a study underway by Lamont-Doherty Earth Observatory’s Initiative on Extreme Weather and Climate.

|
September 26th, 2017|

Climate Change: Some Lessons From the Vikings

Billy D’Andrea’s research on the experiences of the Vikings may provide a kind of object lesson on how changing climate can affect civilizations.

|
September 21st, 2017|

How Will Climate Change Impact Ocean Health?

Three oceanographers from Lamont-Doherty discuss how changes in ocean temperatures and chemistry impact marine life and food security.

|
September 13th, 2017|

‘Pangeo’ Project Will Improve Access to Climate Data

The better climate models become, the harder it is to use them. A team of Columbia scientists and their colleagues are working to fix that.

|
September 12th, 2017|

Could Climate Change Breed a Whole New Category of Hurricane?

Hoaxes have been calling Irma a Category 6 hurricane, but there’s no such thing. Could there be, in the future?

|
September 6th, 2017|

Video: Climate Change and Hurricane Harvey

Atmospheric scientists Chia-Ying Lee and Adam Sobel explain that climate change didn’t cause Hurricane Harvey, but it likely made the storm worse.

|
September 5th, 2017|

How Will Scientists Find Out Whether Climate Change Made Hurricane Harvey Worse?

It’s too soon to say there’s a connection, but searching for the fingerprints of climate change shouldn’t take too long.

|
August 28th, 2017|

Climate May Drive Forest-Eating Beetles North, Says Study

Global warming-related rises in winter temperatures could significantly extend the range of one of the world’s most aggressive tree-killing insects.

|
August 25th, 2017|

How Did Hurricane Harvey Become So Powerful, So Quickly?

Over the past day and a half, Hurricane Harvey’s winds have quickened from about 35 to 109 miles per hour. What’s driving this massive power-up?

|
August 18th, 2017|

Study Finds Most of East Antarctic Ice Sheet Should Remain Stable

A new study validates that the East Antarctic ice sheet should remain stable even if the western ice sheet melts.

|
August 13th, 2017|

How Will Climate Change Impact Shelter?

Robin Bell, Radley Horton, and Adam Sobel explain how their research helps make communities more resilient to extreme weather and sea level rise.

|
Aug 9, 2017|

Analyzing Winter Storm Risk and Resilience in a Changing Climate

A new study found that the northeastern U.S. is at particular risk for physical and economic effects of climate hazards.

|
Aug 1, 2017|

Advancing Viable, Scalable Carbon Storage Solutions

Carbon capture and storage technologies are an essential tool for substantially reducing emissions of greenhouse gases to combat global warming.

|
July 19th, 2017|

Developing Carbon Management Solutions

David Goldberg and Peter Kelemen discuss carbon capture and storage, and how it can make the energy sector, and society, more resilient to climate change.

|
July 13th, 2017|

Surging Heat May Limit Aircraft Takeoffs Globally

Rising temperatures due to global warming will make it harder for many aircraft around the world to take off in coming decades, says a new study.

|
Jul 12, 2017|

One of Largest Icebergs Ever Breaks off Antarctica

It’s not unusual for ice shelves to calve, many in the climate community fear that the breaking of Larsen C may be a signal of other events to come.

|
Jul 11, 2017|

Columbia University Announces Columbia Science Commits

A new initiative accelerates Columbia’s commitment to advance knowledge and solve some of the greatest scientific challenges facing the world today.

Categories: Uncategorized
|
July 6th, 2017|

Warming Climate Could Abruptly Increase Rain in Africa’s Sahel

Scientists have found evidence for a possible abrupt change in the Sahel, a region long characterized by aridity and political instability.

|
June 26th, 2017|

Christine McCarthy: A Cheerleader for the Physics of Ice

Research by geophysicist Christine McCarthy reveals how glaciers move, what makes them speed up, and how they are contributing to sea level rise as the climate warms.

|
June 23rd, 2017|

Announcing the 2017 Center for Climate and Life Senior Fellows

The Center has awarded nearly $1 million to four scientists whose research will improve understanding of how climate change impacts the essentials of human sustainability.

|
June 19th, 2017|

How Drones are Advancing Scientific Research

Once scientists could only observe Earth from above by using manned aircraft or satellites. Today they’re using drones to expand their research as never before.

|
June 12th, 2017|

Adam Sobel: Preparing for the Next Big Storm

Superstorm Sandy was a wake-up call for a lot of people in New York City, including Adam Sobel, who’s spent more than two decades studying the physics of weather and climate.

|
June 8th, 2017|

I Don’t Have Time for Despair. I’m Too Busy Doing Science.

Self-pity is a luxury we can’t afford right now. We need science to inform our actions in a fast-changing world, and we need to keep asking questions.

|
June 1st, 2017|

How Will Climate Change Impact Water Resources?

Richard Seager and Park Williams discuss how water will be affected by warmer temperatures, and how their research increases understanding of these issues.

|
June 1st, 2017|

Meltwater Lakes Existed Under Antarctic Ice

During the last glacial period, there were lakes under Antarctica’s ice sheet, which may have accelerated the retreat of glaciers in the past.

|
May 31st, 2017|

Expect the Wet to Get Wetter, and the Dry, Drier

As the world warms due to climate change, shifts in global distribution of rainfall can be expected, impacting water resources across the planet.

|
May 30th, 2017|

Richard Seager Sees Hand of Climate Change in Drought

Seager, a climate scientist at Lamont-Doherty Earth Observatory, discusses his research on drought in the North American Southwest.

|
May 25, 2017|

Lamont Scientists Are Focus of New York Times Series

Last winter, reporters from The New York Times joined Lamont scientists as they flew their mission of discovery over Antarctica.

|
May 23, 2017|

The Earth Cannot Be Silenced: Support Our Climate Research

We’re working to understand and predict climate change variability and its impacts — and we’re devoted to applying this knowledge to solutions.

|
May 22nd, 2017|

Reduced U.S. Air Pollution Will Boost Rainfall in Africa’s Sahel, Says Study

The health and environmental benefits of U.S. clean air policies extend to global climate.

|
May 19th, 2017|

Photo Essay: Coring Arctic Lakes to Study Vikings

Billy D’Andrea is investigating the relationship between environmental change and characteristics of early settlements in Arctic Norway.

|
May 18, 2017|

Researchers Model Differences in East Coast Sea Level Rise

New research offers the first comprehensive model for understanding differences in sea level rise along North America’s East Coast.

|
May 8, 2017|

Study: Overuse of Water Threatens Global Food Supply

A study co-authored by Michael Puma found food security risks for the entire globe hiding in the water use practices of major food producing nations.

|
May 8, 2017|

The Glaciers are Going: Why This Matters

The melting of glaciers will affect drinking water supplies, water needed to grow food and supply energy, as well as global sea levels.

|
Apr 27, 2017|

The Near-term Impacts of Climate Change on Investors

On May 2, 2017, Lamont-Doherty and the Tamer Center for Social Enterprise at Columbia Business School co-host a Social Enterprise Leadership Forum.

|
April 19th, 2017|

Study Finds Water Streaming Across Antarctica

The widespread presence of seasonally flowing streams signals that the ice may be more vulnerable to melting than previously thought.

Categories: Uncategorized
|
April 19th, 2017|

Visit the Center for Climate and Life at Earth Day Texas

Learn more about our research and initiatives at Earth Day Texas, the largest Earth Day celebration in the world, April 21-23, 2017 in Dallas.

|
April 17th, 2017|

Finding Changing Landscapes Through a Microscope

Pratigya Polissar, a paleoclimatologist and Center for Climate and Life Fellow, talks about his research, and what inspired him to go into his field.

|
March 29th, 2017|

Crop Irrigation Closely Tied to Groundwater Depletion

Michael J. Puma, a Center for Climate and Life Fellow, discusses his new study on groundwater depletion worldwide and the implications for food security.

|
Mar 28, 2017|

How Do Higher CO2 Levels Impact Marine Life?

With support from WSL PURE, Center scientists are examining the impacts of ocean warming and acidification on calcifying plankton.

|
Mar 27, 2017|

Thunderstorms Pose as Much Property Risk as Hurricanes

A report by Columbia University and Willis Re says that the average annual loss from severe convective storms was $11.23 billion for the period 2003-2015.

|
March 24th, 2017|

Park Williams Discovers History and Science in a Tree Ring

Center for Climate and Life Fellow Park Williams studies trees and climate. In this video he talks about his research, why it’s important, and what inspires him.

|
March 8th, 2017|

Is the Oroville Dam Failure a Climate Change Story?

Atmospheric scientist Adam Sobel takes a look at what’s behind the California dam crisis that forced nearly 200,000 people to evacuate.

|
March 2nd, 2017|

Trump’s Unifying Opportunity: Food Security

Securing the nation’s food supply is a major step toward making the U.S. and the world more resilient in the face of increasing uncertainty.

|
February 15th, 2017|

In High Sierras, Remnants of Ice Age Tell a Tale of Future Climate

How did our climate system behave the last time it warmed up like it’s doing today?

|
February 9th, 2017|

Indonesian Corals Shed Light on Climate System

A new coral salinity record shows that the most significant hydroclimatic feature in the Southern Hemisphere influences a major Pacific Ocean current.

|
Feb 6, 2017|

Shifting Monsoon Altered Early Cultures in China, Study Says

Changes in the annual summer monsoon that drops rain onto East Asia likely altered the course of early human cultures in China, say the authors of a new study.

|
Jan 26, 2017|

Mark Cane, George Philander, Win 2017 Vetlesen Prize

Two scientists who untangled the forces that drive El Niño, the world’s most powerful weather cycle, won the 2017 Vetlesen Prize for achievement in Earth sciences.

|
Jan 18, 2017|

Green Sahara’s Ancient Rainfall Regime Revealed

Rainfall patterns in the Sahara during the six-thousand-year “Green Sahara” period have been revealed by analyzing marine sediments.

|
Jan 13, 2017|

Tracking How Glaciers Change Over Time

Research by Lamont’s Billy D’Andreas revealed that over the last century, glaciers in Greenland have been retreating quickly — at a rate at least twice as fast as any other time in the past 9,500 years.

|
Dec 16, 2016|

Climate Change and the Oceans

Lamont geochemist Bärbel Hönisch investigates the role of the ocean and, in particular, the role of marine carbonate chemistry in global climate change.

|
January 9th, 2017|

Henhouse for Rent — Only Foxes Need Apply

Many of President-elect Donald Trump’s cabinet nominations would work to undermine the very things they have been tasked to protect.

Categories: Uncategorized
|
Dec 12, 2016|

New Project to Study Arctic Sea Ice Change

The Gordon and Betty Moore Foundation announced a $3.7 million grant to Lamont-Doherty Earth Observatory for research on changing patterns of sea ice in the Alaskan Arctic.

|
Dec 9, 2016|

2017 Center for Climate and Life Fellows Announced

The four new Fellows are a diverse group of junior and mid-career scientists with research interests spanning a range of climate topics and regions.

|
Dec 7, 2016|

Most of Greenland Ice Melted to Bedrock in Recent Geologic Past

Evidence buried in Greenland’s bedrock shows that the Greenland Ice Sheet nearly disappeared for an extended time in the last million years or so.

|
Dec 2, 2016|

Antarctica Has a New Explorer Testing the Water Along a Critical Ice Shelf

Floats deployed by Lamont scientists will find areas where warmer than normal water could put the Ross Ice Shelf at risk.

|
November 17th, 2016|

The Real Climate Catastrophe

Earth’s climate is changing very rapidly, with severe impacts looming on the horizon, yet we continue to stand around instead of finding and implementing solutions to the challenges posed by global warming.

|
Nov 16, 2016|

Where Trees Meet Tundra, Decoding Signals of Climate Change

In the far north, climate is warming two to three times faster than the global average. How will these changes affect tundra and boreal forests?

|
Nov 11, 2016|

Understanding Microbes and Global Warming

Sonya Dyhrman studies marine microbes and the role they play in producing oxygen, capturing carbon dioxide, and fueling the marine food web.

|
November 4th, 2016|

Clues to Past Climate

A close-up of a Litsea calicarioides leaf’s stomata, through which leaves take in carbon dioxide and release oxygen, speaks to atmospheric CO2 levels 23 million years ago.

|
October 31st, 2016|

Monitoring Coastal Erosion in West Africa

Geologist Alessio Rovere and Trinity Mensah-Senoo walk along a beach in Ghana gathering data that will be used to monitor coastal erosion.

|
November 1st, 2016|

How Far Did Sea Level Rise in the Past?

Figuring out how far sea level rose during past warm periods in Earth’s history starts with a walk on the beach, a keen eye for evidence of ancient shorelines, and a highly accurate GPS system.

|
October 31st, 2016|

Turning CO2 to Stone to Combat Climate Change

Lamont scientists have developed ways to relatively quickly turn carbon dioxide captured from power plants to a solid for long-term storage.

|
October 28th, 2016|

The Impact of Human-caused Warming on Drought and Fire

Park Williams explains the influence of climate change on droughts and wildfires in the western United States.

|
October 14th, 2016|

Pacific Corals and Climate

In diving expeditions to several Pacific Ocean islands, Lamont paleoclimatologist Brad Linsley has collected cores that hold up to 500 years’ worth of climate information.

|
October 13th, 2016|

Historic Shrinking of Antarctic Ice Sheet Linked to CO2 Spike

23 million years ago, the Antarctic ice sheet was shrinking quickly. A new study by Lamont scientists sheds light on the cause of that ancient melt.

|
October 10th, 2016|

Climate Change Has Doubled Western U.S. Forest Fire Area

A new study says that human-induced climate change has doubled the area affected by forest fires in the U.S. West over the last 30 years.

|
October 7th, 2016|

Sea Change in South Africa

Lamont marine geologist and paleoclimatologist Maureen Raymo studies ancient shorelines to understand how high seas rose in the past, and how high they might climb in the future.

|
October 6th, 2016|

Rising Temperatures Load the Dice for Megadrought Risk

As the Southwestern U.S. grows hotter, the risk of long-lasting megadroughts rises, passing 90% this century if greenhouse gas emissions continue at their current pace.

|
Oct 5, 2016|

Climate and Life at the Lamont Open House

Follow your curiosity and explore Earth science with us with on Saturday, October 8 at the Lamont-Doherty Earth Observatory Open House.

|
Oct 4, 2016|

Mapping Risks and Building Resilience, From Plot to Plate

Figuring out how the global food system might respond to disturbances will ensure that everyone has safe, reliable access to the food they need.

|
September 30th, 2016|

Songbirds and Climate Change

Ecosystem ecologist Natalie Boelman is studying the effects of climate change on the relationships among migratory songbirds, plants and insects in Alaska.

Categories: Uncategorized
|
September 30th, 2016|

Request for Proposals: Center for Climate and Life Fellows

The Center for Climate and Life will support three new fellows to conduct innovative, impactful research relevant to our mission.

|
September 15th, 2016|

Facing Rapid Change in the Arctic

An expedition to the Canadian Arctic and west coast of Greenland is a moving and motivating experience for leading climate scientist Maureen Raymo.

|
Aug 30, 2016|

How Does the Ocean Drive Weather and Climate Extremes?

Lamont’s Ryan Abernathey and Richard Seager are investigating how processes in the ocean create extreme weather and climate conditions over land.

|
Aug 24, 2016|

By Mid-Century, More Antarctic Snowfall May Partially Offset Sea-Level Rise

In a new study, Lamont’s Michael Previdi and Lorenzo Polvani found that the effect of rising temperatures on snowfall in Antarctica has so far been overshadowed by the frozen continent’s large natural climate variability.

|
August 18th, 2016|

Drought and Fire Activity: What’s Climate Change Got to Do with It?

Scientist Park Williams, recipient of a Climate and Life Fellowship, is examining the influence of climate change on droughts and wildfires.

|
August 17th, 2016|

As Louisiana Floods, Assessing the Influence of Climate Change

The heavy rains and flooding in Louisiana have been devastating. Can we attribute the severity of it to climate change? How you measure that depends on the questions you ask.

Categories: Uncategorized
|
August 11th, 2016|

Surf with a Legend and Support Ocean Science Research

Join pro-surfing legend Kelly Slater at his Surf Ranch as part of a new fundraising campaign that benefits WSL PURE and the Center for Climate and Life.

|
August 9th, 2016|

A Migration Mystery

Ecologist Natalie Boelman is part of a multi-year field campaign to understand the impacts of climate change in Alaska and western Canada.

|
July 26th, 2016|

A Summer of Hands-on, Minds-On Science

A new internship program enables high school students to gain hands-on research experience while working alongside Climate and Life scientists.

|
July 14th, 2016|

Tropical Cyclones on Track to Grow More Intense as Temperatures Rise

Powerful tropical cyclones like the super typhoon that lashed Taiwan in July are expected to become even stronger as the planet warms.

|
July 10th, 2016|

Penguins: Climate’s Canaries in the Coal Mine

Changes on the West Antarctic Peninsula are showing in the numbers and species of marine wildlife, particularly the native Adélie penguin.

|
Jun 27, 2016|

Wind-Blown Antarctic Sea Ice Helps Drive Ocean Circulation

A new study shows how Antarctic sea ice migration may be more important for the global ocean circulation than anyone realized.

|
Jun 16, 2016|

Putting CO2 Away for Good by Turning it Into Stone

In a recently published study, scientists demonstrated that two years after injecting CO2 underground at a pilot test site in Iceland, almost all of it has been converted into minerals.

|
Jun 14, 2016|

New Support for Human Evolution in Grasslands

A new study supplies the longest and most complete record of ancient plant life in much of what is now Ethiopia and Kenya, the assumed birthplace of humanity.

|
Jun 9, 2016|

In a First, Iceland Power Plant Turns CO2 Emissions to Stone

Scientists working at the power plant demonstrated how CO2 emissions pumped into the earth could be chemically changed to a solid within months.

|
May 19th, 2016|

Is It The End Of The World As We Know It?

In this episode of the Huffington Post’s “Talk Nerdy To Me,” Center for Climate and Life Director Peter de Menocal discusses climate change and the Anthropocene.

|
May 17th, 2016|

Iron Fertilization Won’t Work in Equatorial Pacific, Study Suggests

Earth’s own large-scale iron fertilization experiments over 500,000 years show adding iron to the equatorial Pacific surface has little effect.

Categories: Uncategorized
|
May 14, 2016|

Talks@Columbia: Why Climate Matters

Center for Climate and Life director Peter deMenocal discusses how climate is changing today, why it is changing and how this impacts people and the global economy.

|
Apr 5, 2016|

Surfers Team Up with Columbia to Support Ocean Science

The World Surf League is providing $1.5 million in first-year funding for ocean science at Lamont as part of an innovative new philanthropy called WSL PURE.

|
May 4th, 2016|

Ice & Sea-Level Scientist Maureen Raymo Elected to National Academy of Sciences

Maureen Raymo, a marine geologist and paleoceanographer whose name is connected with key theories about how ice ages wax and wane and how sea levels change, has been elected to the National Academy of Sciences.

|
March 15th, 2016|

How Will a Shifting Climate Change U.S. Forests?

The Ozarks are some of the country’s most productive forests. They also sit in a warming “hole”, where temperature rise hasn’t yet taken hold.

|
March 5th, 2016|

Bleach Patrol: Turning Surfers into Scientists for Coral Reefs

A new citizen science project turns surfers and other ocean enthusiasts into the eyes of scientists studying the world’s coral reefs.

Glacier loss. (USGS)
|
Feb 24, 2016|

Climate Change Isn’t Just a 21st Century Problem

Humans have been burning fossil fuels for only about 150 years, yet that has started a cascade of changes that will still be felt 10,000 years from now.

Ryan Abernathey
|
Feb 23, 2016|

Exploring Ocean Turbulence: Sloan Research Fellow Ryan Abernathey

Mesoscale turbulence is where most of the kinetic energy in the oceans can be found, and it may play powerful roles in the global climate.

|
Feb 1, 2016|

Without the Montreal Protocol, More Intense Tropical Cyclones

Using computer models, scientists compared our expected future with a scenario in which ozone-depleting substances had never been regulated.

|
Jan 22, 2016|

Center for Climate & Life Announces 2016 Fellows

One scientist is focusing on food security and climate shocks. The other is exploring the influence of climate change on droughts and wildfires.

|
December 7th, 2015|

Greenland Glaciers Retreating Faster than Any Time in 9,500 Years

A new study uses sediment cores to track the expansion and retreat of glaciers through time and finds they are more sensitive than realized.

|
November 28th, 2015|

Lamont-Doherty Earth Observatory: Milestones in Climate Studies

Much of the modern understanding of climate has been shaped by pioneering studies done at Columbia University’s Lamont-Doherty Earth Observatory.

|
December 3rd, 2015|

What Is Ocean Acidification & Why Does It Matter?

As excess carbon dioxide is absorbed into the oceans, it is starting to have profound effects on marine life, from oysters to tiny snails at the base of the food chain.

Satellite image of peat fires in Borneo during 2015 (NASA)
|
November 19th, 2015|

Peat Fires Choking Southeast Asia Pose New Threat to Global Climate

The Indonesian peat fires that have been choking cities across Southeast Asia are creating more than a local health menace—they’re releasing immense stores of CO2.

Snowpack in the Lesser Caucasus mountains of northeastern Turkey. The lowlands depend on snowmelt, which is projected to decline due to global warming. (Courtesy of Dario Martin-Benito).
|
November 12th, 2015|

Declining Snowpacks May Cut Many Nations’ Water

Scientists have identified 32 water basins where loss of snowpack as temperatures warm is putting the water supplies of large populations at risk.

The former site of Sant Roma de Sau as water levels drop in Spain. (Josep Enric/CC-BY-2.0)
|
November 6th, 2015|

New Drought Atlas Maps 2,000 Years of Climate in Europe

Using tree rings, a new drought atlas maps the reach and severity of dry and wet periods across Europe and the Mediterranean over the past 2,000 years.

Greenland Ice Sheet (NASA-GSFC)
|
October 13th, 2015|

Tracking Ice Sheets When They Were Smaller than Today

As global temperatures rise, knowing just how far Greenland’s ice sheet shrank in the past could help scientists predict sea level rise in the future.

A new study projects that much of Ethiopia, Somalia and Djibouti in the Horn of Africa will grow drier as global warming progresses. In northern Ethiopia, herders often already struggle to make a living. (Brian Kahn/IRI)
|
October 9th, 2015|

Horn of Africa Drying in Sync with Climate

A new study finds that the Horn of Africa is drying at a rate that is both unusual in the context of the past 2,000 years and in step with human-influenced warming.

Changing pollen levels in the sediment of Lake Elsinore indicate that a series of mega-droughts gripped the region thousands of years ago. Photo by Jim Sneddon/CC-BY-2.0
|
September 22nd, 2015|

Ancient Pollen Points to Mega-Droughts in California Thousands of Years Ago

Ancient pollen is providing new insights into historic droughts in Southern California, including how a series of mega-droughts that changed the ecological landscape.

A research vessel plows through the Southern Ocean, whose rough waters play an outsize role in absorbing carbon dioxide from the air. (Nicolas Metzl, LOCEAN/IPSL Laboratory)
|
September 10th, 2015|

The Southern Ocean Is Breathing in Carbon Dioxide at a Healthy Rate

Since the late 1980s, the Southern Ocean’s rate of CO2 uptake appeared to have stagnated, alarming scientists. New data shows a recovery.

Morning fog reflects solar radiation in the Amazon River Basin. Photo: Dallas Krentzler/CC-BY-2.0
|
September 1st, 2015|

Seeing the Amazon’s Future Through the Fog

To understand the impact on the Amazon as global warming produces more intense and frequent droughts, we need to understand its water and carbon cycles.

California drying. (Dominick McPeak)
|
August 20th, 2015|

Warming Climate is Deepening California Drought

A new study finds that global warming has measurably worsened the ongoing California drought and holds warnings for the future.

Researchers sample a dead tree in northern Mongolia. (Courtesy Nicole Davi)
|
June 11th, 2015|

Tree Rings Confirm Unprecedented Warming in Central Asia

A new study of tree rings from Mongolia dating back more than 1,000 years confirms that recent warming in central Asia has no parallel in any known record.

Sea surface height (color shading) and heat transport in the upper 700 m (arrows) during 2003-2012. (Lee etal, Nature Geoscience, 2015)
|
May 20th, 2015|

Global Warming’s ‘Missing’ Heat: It May Be in the Indian Ocean

A team of oceanographers says much of the heat trapped in the atmosphere by greenhouse gases is being soaked up and stored by the oceans–at least for now.

At Iceland’s geothermal power plants, interdisciplinary teams work to eliminate carbon dioxide emissions. (Asgeir Eggertsson/CC-BY-SA-3.0)
|
Apr 14, 2015|

In a Melting Iceland, Drilling Deep to Stem Climate Change

Iceland has seen fast-rising temperatures since the 1970s, and glaciers–a big source of runoff for hydropower–are visibly receding.

Drought map in 2095 under business as usual. (NASA)
|
Feb 12, 2015|

Warming Pushes Western U.S. Toward Driest Period in 1,000 Years

During the second half of the 21st century, the U.S. Southwest and Great Plains will face drought worse than anything seen in times ancient or modern, a new study says.

In northern winter, the Bering Sea, dividing Alaska and Siberia, becomes the most acidic region on earth (in purple) as shown in this February 2005 acidity map in pH scale. Temperate oceans are less acidic. The equatorial Pacific is left blank due to its high variability around El Niño and La Niña events. (Takahashi)
|
November 7th, 2014|

New Global Maps Detail Human-Caused Ocean Acidification

A team of scientists has published the most comprehensive picture yet of how acidity levels vary across the world’s oceans.