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Unclouding Our View of Future Climate

If we had a second Earth, we could experiment with its atmosphere to see how increased levels of greenhouse gases would change it, without the risks that come with performing such an experiment. Since we don’t, scientists use global climate models.

In the virtual Earths of the models, interlocking mathematical equations take the place of our planet’s atmosphere, water, land and ice. Supercomputers do the math that keeps these virtual worlds turning — as many as 100 billion calculations for one modeled year in a typical experiment. Groups that project the future of our planet use input from about 30 such climate models, run by governments and organizations worldwide. (more…)

Small Organisms Could Dramatically Impact World’s Climate

By Guest PostOctober 26, 2012Environment21st century, atmospheric, carbon, carbon dioxide, christopher klausmeier, climate change, colin kremer, cycle, david garrison, diversity, element, elena litchman, equatorial water, evolutionary adaptation, food chain, global climate, impact, level, marine microorganism, michigan, mridul thomas, nitrogen, ocean, ocean floor, organism, phosphorous, photosynthesis, phytoplankton, population, science express, state university, temperature, tropical water, warmer

EAST LANSING, Mich. — Warmer oceans in the future could significantly alter populations of phytoplankton, tiny organisms that could have a major impact on climate change.

In the current issue of Science Express, Michigan State University researchers show that by the end of the 21st century, warmer oceans will cause populations of these marine microorganisms to thrive near the poles and may shrink in equatorial waters. Since phytoplankton play a key role in the food chain and the world’s cycles of carbon, nitrogen, phosphorous and other elements, a drastic drop could have measurable consequences. (more…)

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Unclouding Our View of Future Climate

Small Organisms Could Dramatically Impact World’s Climate