A new study has uncovered when and why the native vegetation that today dominates much of Australia first expanded across the continent.
Tag: climate change
Climate scientist Radley Horton is bringing the effects of sea level rise to the attention of decision-makers and fostering discussions to help society more effectively confront climate change.
Two new papers find that the line that divides the moist East and arid West is edging eastward due to climate change—and the implications for farming and other pursuits could be huge.
Columbia University and data-analytics firm Jupiter will collaborate on improved hurricane track simulations so that the public and private sectors can plan for weather and climate risks.
Researchers report a sharp drop in salinity in the North Atlantic Ocean over the last decade, providing the most detailed look yet at changing ocean conditions in the region.
Robin Bell is a Lamont-Doherty Earth Observatory polar scientist whose breakthrough research, fueled by passionate intellectual curiosity, has been critical to understanding our planet.
The death of coral reefs is a more significant factor in the erosion of tropical coastlines than rising sea levels, says research by Lamont’s Alessio Rovere and an international team of scientists.
Citizen scientists are invited to contribute to a project led by Marco Tedesco, who’s investigating the properties of snow in the eastern U.S. and how that snow is changing over time.
On January 31 at 1:00 p.m. EST, Lamont’s Hugh Ducklow and his colleagues will use the National Science Foundation Twitter account to discuss their research on Antarctic ecology.
On May 4, 2018, the dialogue among climate scientists, engineers, and business and finance leaders will focus on “Ice Sheets and Sea Level Rise: Implications for Coastal Property.”
Center for Climate and Life Fellow Chia-Ying Lee is examining how wind field asymmetries and variability impact tropical cyclone risk and how these can be included in risk models.
Rainfall changes caused by global warming will increase river flooding risks across the globe by the 2040s, says a new study. The increases will be greatest in the U.S., central Europe, Indonesia, and parts of India and Africa.
In coming decades, the effects of high humidity in many areas may surpass humans’ ability to work or, in some cases, even survive.
A new study co-authored by Maureen Raymo calculates that if we eat half as many burgers and steaks each week, it could have a profound effect on carbon emissions and the environment.
In a remote region around Kenya’s Lake Turkana, Kevin Uno collects fossils and sediments which are used to understand how climate affected our ancestors millions of years ago.
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.
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.
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.
The warmer, more acidic waters caused by climate change influence the behavior of tiny marine organisms essential to ocean health.
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.
A video filmed by Lamont marine biologist Andy Juhl reveals mature jellyfish under the Arctic sea ice, where they aren’t supposed to be.
Humans migrated out of Africa to escape a drying climate, about 60,000 years ago, according to a new study in the journal Geology.
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.
Three oceanographers from Lamont-Doherty discuss how changes in ocean temperatures and chemistry impact marine life and food security.
Atmospheric scientists Chia-Ying Lee and Adam Sobel explain that climate change didn’t cause Hurricane Harvey, but it likely made the storm worse.
It’s too soon to say there’s a connection, but searching for the fingerprints of climate change shouldn’t take too long.
Global warming-related rises in winter temperatures could significantly extend the range of one of the world’s most aggressive tree-killing insects.
A new study validates that the East Antarctic ice sheet should remain stable even if the western ice sheet melts.
Robin Bell, Radley Horton, and Adam Sobel explain how their research helps make communities more resilient to extreme weather and sea level rise.
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.
A new initiative accelerates Columbia’s commitment to advance knowledge and solve some of the greatest scientific challenges facing the world today.
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.
Richard Seager and Park Williams discuss how water will be affected by warmer temperatures, and how their research increases understanding of these issues.
During the last glacial period, there were lakes under Antarctica’s ice sheet, which may have accelerated the retreat of glaciers in the past.
As the world warms due to climate change, shifts in global distribution of rainfall can be expected, impacting water resources across the planet.
Seager, a climate scientist at Lamont-Doherty Earth Observatory, discusses his research on drought in the North American Southwest.
Last winter, reporters from The New York Times joined Lamont scientists as they flew their mission of discovery over Antarctica.
We’re working to understand and predict climate change variability and its impacts — and we’re devoted to applying this knowledge to solutions.
New research offers the first comprehensive model for understanding differences in sea level rise along North America’s East Coast.
The melting of glaciers will affect drinking water supplies, water needed to grow food and supply energy, as well as global sea levels.
On May 2, 2017, Lamont-Doherty and the Tamer Center for Social Enterprise at Columbia Business School co-host a Social Enterprise Leadership Forum.
The widespread presence of seasonally flowing streams signals that the ice may be more vulnerable to melting than previously thought.
Atmospheric scientist Adam Sobel takes a look at what’s behind the California dam crisis that forced nearly 200,000 people to evacuate.
How did our climate system behave the last time it warmed up like it’s doing today?
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.
Polar scientists give Obama a warm farewell by collecting climate data in his name.
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.
Lamont geochemist Bärbel Hönisch investigates the role of the ocean and, in particular, the role of marine carbonate chemistry in global 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?
Sonya Dyhrman studies marine microbes and the role they play in producing oxygen, capturing carbon dioxide, and fueling the marine food web.
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.
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.
Ecosystem ecologist Natalie Boelman is studying the effects of climate change on the relationships among migratory songbirds, plants and insects in Alaska.
An expedition to the Canadian Arctic and west coast of Greenland is a moving and motivating experience for leading climate scientist Maureen Raymo.
Scientist Park Williams, recipient of a Climate and Life Fellowship, is examining the influence of climate change on droughts and wildfires.
Ecologist Natalie Boelman is part of a multi-year field campaign to understand the impacts of climate change in Alaska and western Canada.
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.
Earth’s own large-scale iron fertilization experiments over 500,000 years show adding iron to the equatorial Pacific surface has little effect.
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.
Using computer models, scientists compared our expected future with a scenario in which ozone-depleting substances had never been regulated.
One scientist is focusing on food security and climate shocks. The other is exploring the influence of climate change on droughts and wildfires.
Much of the modern understanding of climate has been shaped by pioneering studies done at Columbia University’s Lamont-Doherty Earth Observatory.
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.
Scientists have identified 32 water basins where loss of snowpack as temperatures warm is putting the water supplies of large populations at risk.
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.
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.
Ancient pollen is providing new insights into historic droughts in Southern California, including how a series of mega-droughts that changed the ecological landscape.
Since the late 1980s, the Southern Ocean’s rate of CO2 uptake appeared to have stagnated, alarming scientists. New data shows a recovery.
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.
A new study finds that global warming has measurably worsened the ongoing California drought and holds warnings for the future.
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.
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.
A new study by Lamont-Doherty Earth Observatory scientists says a record drought that ravaged Syria in 2006-2010 was likely stoked by ongoing manmade climate change, and that the drought may have helped propel the 2011 Syrian uprising.
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.
A team of scientists has published the most comprehensive picture yet of how acidity levels vary across the world’s oceans.