• Blue Marble – NASA

  • Bhutan – Courtesy of Aaron Putnam

  • Oregon – Courtesy of Adam Hudson

  • New Zealand – Courtesy of George Denton

  • Mongolia – Jennifer Draper/Medill

  • Michigan – Medill photo

  • Pacific Ocean – Medill photo

  • Drought, Iowa – Medill photo

  • Medill photo

  • Thwaites Glacier, West Antarctica - NA

  • Greenland icebergs - Gary Comer/Courtesy of the Comer Family Foundation

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From granite to glacier: Recreating Antarctica’s Ice Age past

From granite to glacier: Recreating Antarctica’s Ice Age past

By Jia You Palisades, New York — They rest side by side on a dark bench table, two coarse linen bags labeled with big, round numbers and letters. Mike Kaplan carefully unties the bag labeled “JRI-14-33” and reaches inside. “That’s a really nice granite,” the 46-year-old geologist exclaims as soon as he sees the light…Read More

GOING GREEN MAKES COMMON CENTS

GOING GREEN MAKES COMMON CENTS

“Green” often means cold hard cash – or eco-friendly options. But climate scientist Richard Alley of Pennsylvania State University says that dealing with climate change reaps green for both meanings of the word. This fall, Alley and other leading climate scientists met to build a clearer understanding of earth’s climate history at the Comer Abrupt Climate Change Conference in southwestern Wisconsin.Read More

ANCIENT SHORELINES MAP LAKE LEVELS TO HELP PREDICT FUTURE DROUGHTS

ANCIENT SHORELINES MAP LAKE LEVELS TO HELP PREDICT FUTURE DROUGHTS

Ancient shorelines in the Great Basin of the western United States reveal clues to severe ancient droughts and that could help us better predict climate change for the future. Scientists in the U.S. and elsewhere across the globe are trying to use lake clues signifying wet and dry periods over thousands of years in order to tie these periods to past climate changes… Read More

CLIMATE CHANGE MAY BE STALLING OVERDUE ICE AGE

CLIMATE CHANGE MAY BE STALLING OVERDUE ICE AGE

Despite warming temperatures worldwide, scientists are exploring Earth’s ancient cold snaps. Researching how past ice ages ended can reveal clues about our planet’s future. Some of the evidence suggests that we might be overdue for an ice age, in fact, according to glaciologist Brenda Hall of the University of Maine…Read More

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SOIL ‘GIVES A KICK’ TO CLIMATE CHANGE

SOIL ‘GIVES A KICK’ TO CLIMATE CHANGE

Yes, humans are releasing huge amounts of carbon dioxide into the atmosphere by burning fossil fuels. But we might be boosting the emissions from an unexpected place: the earth beneath our feet. Antarctic warming periods in the ancient past shows that soils may have amplified rises in temperature that occurred thousands of years ago…

ICE AGE PUZZLES IN CHILE HIDE MYSTERIES FOR WARMING WORLD

ICE AGE PUZZLES IN CHILE HIDE MYSTERIES FOR WARMING WORLD

Climate trends in the Northern and Southern hemispheres often seem out of sync, and scientists say that solving the mystery is a must to better understand what to expect in a warming world. Enter George Denton, a veteran researcher on the shifts between the glacial and interglacial cycles – the ice ages…

LOW TIDES MAY ADD TO MASSIVE COLLAPSE OF GREENLAND GLACIERS

LOW TIDES MAY ADD TO MASSIVE COLLAPSE OF GREENLAND GLACIERS

Global warming is driving increased calving of the Greenland glaciers, causing icebergs the size of Central Park to crash into the sea. But low tides might be contributing to the calving crisis and helping to trigger huge earthquakes created by the massive icebergs, according to seismologist Meredith Nettles. Nettles…

WE CAN’T TREAT ATMOSPHERE AS A GARBAGE CAN, WARNS VETERAN CLIMATE SCIENTIST

WE CAN’T TREAT ATMOSPHERE AS A GARBAGE CAN, WARNS VETERAN CLIMATE SCIENTIST

Wallace Broecker works at the forefront of climate science, an elder statesman of global research at Columbia University’s Lamont-Doherty Earth Observatory. He grew up in Oak Park, earned his Ph.D. in the 1950s at Columbia and won fame in his field of geoscience. He coined the phrase global warming in the…

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