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Ancient Fossils Hold Clues for Predicting Future Climate Change, Scientists Report

By Guest PostApril 18, 2011Environmentadam csank, ancient climate record, ancient fossils, Antarctica, aradhna tripati, arctic circle, arctic temperatures, beaver pond, canada, carbon dioxide, climate modeling, coal mine, early pliocene epoch, ellesmere island, Environment, fossilized mollusks, geochemical techniques, geosciences, global climate change, greenland, mollusk shells, natalia rybczynski, polar ice cap, strathcona fiord

By studying fossilized mollusks from some 3.5 million years ago, UCLA geoscientists and colleagues have been able to construct an ancient climate record that holds clues about the long-term effects of Earth’s current levels of atmospheric carbon dioxide, a key contributor to global climate change.

Two novel geochemical techniques used to determine the temperature at which the mollusk shells were formed suggest that summertime Arctic temperatures during the early Pliocene epoch (3.5 million to 4 million years ago) may have been a staggering 18 to 28 degrees Fahrenheit warmer than today. And these ancient fossils, harvested from deep within the Arctic Circle, may have once lived in an environment in which the polar ice cap melted completely during the summer months. (more…)

It’s all in a Name: ‘Global warming’ versus ‘Climate change’

By Guest PostMarch 9, 2011Environmentamericans, climate change, conservative think tanks, democrats, general changes, global climate change, global warming, jonathon schuldt, levels of belief, liberal think tanks, norbert schwarz, partisan divide, phenomenon, political orientation, political think tank, republicans, sara konrath, temperature, temperature increases, wording matters, world weather

ANN ARBOR, Mich.— Many Americans are skeptical about whether the world’s weather is changing, but apparently the degree of skepticism varies systematically depending on what that change is called.

According to a University of Michigan study published in the forthcoming issue of Public Opinion Quarterly, more people believe in “climate change” than in “global warming.” (more…)

Soot From Space Tourism Rockets Could Spur Climate Change

By Guest PostOctober 24, 2010Environmentaerospace corporation, carbon dioxide emissions, climate impact, complex global pattern, darin toohey, global climate change, michael mills, NASA, solar energy, space tourism rockets, stratospheric layer, university of colorado

WASHINGTON—Rocket exhaust could become a significant contributor to global climate change in coming decades, according to a new study. The research finds that soot emitted by rockets — not their carbon dioxide emissions — has the greater potential to contribute to global climate change in coming decades. (more…)

Rise in Global Temperatures and Extinction of the Lizards

By Guest PostMay 29, 20101 commentEnvironmentaaas, andrew sugden, barry sinervo, brazil, carbon dioxide, carbon dioxide emissions, carlos frederico duarte rocha, chamaeleonidae, department of ecology and evolutionary biology, donald miles, extinction, fausto méndez-de-la-cruz, furcifer lateralis, global climate change, google earth, google scholar, ignacio de la riva, jack sites, lizards, Madagascar, Mexico, mexico climate-warming, santa cruz, sceloporus lizard, Science, united states, university of california

For many lizards, global climate change is a matter of life and death.

After decades of surveying Sceloporus lizard populations in Mexico, an international research team has found that rising temperatures have driven 12 percent of the country’s lizard populations to extinction.

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Tag Archives: global climate change

Ancient Fossils Hold Clues for Predicting Future Climate Change, Scientists Report

It’s all in a Name: ‘Global warming’ versus ‘Climate change’

Soot From Space Tourism Rockets Could Spur Climate Change

Rise in Global Temperatures and Extinction of the Lizards