Global Warming

Speaker Nancy Pelosi and Democrats on the House Special Committee on Climate are pushing Congress to set a national goal of net-zero emissions by at least 2050 and to more aggressively shift to renewable energy over fossil fuels.It’s an agenda, they argue, that is necessary to slow the man-made consequences…

What better way to escape from today's madness than to watch a film about an entirely different kind of disaster: a humanity-destroying comet? If we were living in the pre-pandemic olden days of last summer, Greenland would already be in theaters (originally scheduled for release June 12th), surely marketed as…

As long ago as the 1890s, scientists predicted that increasing levels of carbon dioxide in the atmosphere would lead to a warming planet, particularly in the Arctic, where the loss of reflective snow and sea ice would further warm the region. Climate models have consistently pointed to “Arctic amplification” emerging…

It is not unusual to come across headlines about pollution or global warming and find that they reach different conclusions depending upon the data source. Researchers at Washington University in St. Louis used a harmonized approach, incorporating data from multiple satellites and ground monitors with computer modeling to compile a…

Calculated trends in geophysical PM2.5 values from 1998–2018. Warm colors indicate positive trends, cool colors indicate negative trends and the opacity of the colors indicates the statistical significance of the trends. Credit: Martin Lab It is not unusual to come across headlines about pollution or global warming and find that…

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Credit: CC0 Public Domain Many countries are failing to comply with the non-binding commitments of the Paris Agreement, making it increasingly clear that we have to reconsider how to ensure collective action to limit global warming to less than 2 degrees C above preindustrial levels. A new IIASA-led study supports…

The novelist William Golding suggested to James Lovelock that he name his now-famous hypothesis after the Greek goddess of the Earth, Gaia. It was a good fit: Lovelock believed that the living and inanimate parts of the Earth formed a single, interacting, and self-regulating system. Lovelock’s work grew, in part,…

Pierre Dutrieux preparing a Seaglider for deployment in front of the Dotson Ice Shelf, West Antarctica, during a summer 2018 research expedition. Credit: Pierre Dutrieux Antarctica is rapidly shedding ice, a loss that contributes to rising seas. Research demonstrates that human-induced global climate change and warming ocean temperatures are the…

Melting ice in the Arctic Ocean is a bellwether for climate change, an apt illustration of environmental changes in a warming world. Credit: Zhangxian Ouyang New research by University of Delaware doctoral student Zhangxian Ouyang and oceanographer Wei-Jun Cai, and an international team of researchers, demonstrates that rapid warming and…