The mysteries of Antarctic sea ice
The world is unmistakeably warming, melting glaciers and raising sea levels world-wide.
Has Antarctic sea ice expansion been overestimated?
New research suggests that Antarctic sea ice may not be expanding as fast as previously thought. A team of scientists say much of the increase measured for Southern Hemisphere sea ice could be due to a processing ...
Mammoth and mastodon behavior was less roam, more stay at home
Their scruffy beards weren't ironic, but there are reasons mammoths and mastodons could have been the hipsters of the Ice Age.
World is getting warmer, says global climate report (Update)
The world is getting warmer, as greenhouse gases reach historic highs and Arctic sea ice melts, making 2013 one of the hottest years on record, international scientists said Thursday.
Tracking the breakup of Arctic summer sea ice
As sea ice begins to melt back toward its late September minimum, it is being watched as never before. Scientists have put sensors on and under ice in the Beaufort Sea for an unprecedented campaign to monitor ...
Corals provide clues for climate change research
(Phys.org) —Just as growth rings can offer insight into climate changes occurring during the lifespan of a tree, corals have much to tell about changes in the ocean. At Caltech, climate scientists Jess ...
Meet the gomphothere: Archaeologists discover bones of elephant ancestor
An animal once believed to have disappeared from North America before humans ever arrived there might actually have roamed the continent longer than previously thought – and it was likely on the list of ...
What geology has to say about global warming
Last month I gave a public lecture entitled, "When Maine was California," to an audience in a small town in Maine. It drew parallels between California, today, and Maine, 400 million years ago, when similar ...
NASA's high-flying laser altimeter to check out summer sea ice and more
Sea ice in summer looks dramatically different than sea ice in winter, even in the polar Arctic. Summer snowmelt, pools of water on thinning ice and exposed ocean replace vast winter expanses of white snow-covered ...
Leading scientists express rising concern about 'microplastics' in the ocean
Microplastics – microscopic particles of plastic debris – are of increasing concern because of their widespread presence in the oceans and the potential physical and toxicological risks they pose to organisms.
Poles apart: Arctic sea ice has shrunk but Antarctic sea ice has grown
A new study of satellite sea ice measurements shows that over the last 35 years there have been dramatic changes in sea ice cover around the world.
Changing Antarctic winds create new sea level threat
New research shows projected changes in the winds circling the Antarctic may accelerate global sea level rise significantly more than previously estimated.
Researcher studies past climate change to understand future impact
A former University of Alberta PhD student has come back to campus as an assistant professor, to explore and teach about the mysteries of natural climate warming and ice age history, on the heels of a newly ...
Rewriting the history of volcanic forcing during the past 2,000 years
A team of scientists led by Michael Sigl and Joe McConnell of Nevada's Desert Research Institute (DRI) has completed the most accurate and precise reconstruction to date of historic volcanic sulfate emissions ...