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Dry tropical forests may be more at risk than wet rainforests, study says

Dry tropical forests are more vulnerable to the impacts of global heating than had been thought, according to new research, with wildlife and plants at severe risk of harm from human impacts. Some tropical forests are very wet, but others…

Are New Extreme Global Warming Projections Correct? – EcoWatch

By Jeff Berardelli For the past year, some of the most up-to-date computer models from the world’s top climate modeling groups have been “running hot” – projecting that global warming may be even more extreme than earlier thought. Data from…

Why are the offspring of older mothers less fit to live long and prosper?

(Marine Biological Laboratory) In a new study in rotifers (microscopic invertebrates), scientists tested the evolutionary fitness of older-mother offspring in several real and simulated environments, including laboratory culture, under threat of predation in the wild, or with reduced food supply. They confirmed that this effect of older maternal age, called maternal effect senescence, does reduce evolutionary fitness of the offspring in all environments, primarily through reduced fertility during their peak reproductive period. They also suggest an evolutionary mechanism for why this may occur.

Some new climate models are projecting extreme warming. Are they correct? – Yale Climate Connections

For the past year, some of the most up-to-date computer models from the world’s top climate modeling groups have been “running hot” – projecting that global warming may be even more extreme than earlier thought. Data from some of the…

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Global warming will cause ecosystems to produce more methane than first predicted – Science Daily

New research suggests that as the Earth warms natural ecosystems such as freshwaters will release more methane than expected from predictions based on temperature increases alone. The study, published today in Nature Climate Change, attributes this difference to changes in…

Global warming will cause ecosystems to produce more methane than first predicted – EurekAlert

New research suggests that as the Earth warms natural ecosystems such as freshwaters will release more methane than expected from predictions based on temperature increases alone. The study, published today in Nature Climate Change, attributes this difference to changes in…

Global warming will cause ecosystems to produce more methane than first predicted

(Queen Mary University of London) New research suggests that as the Earth warms natural ecosystems such as freshwaters will release more methane than expected from predictions based on temperature increases alone.

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From Jekyll to Hyde: New study pinpoints mutation that makes E. coli deadlier

We all know that there are ”good” and ”bad” bacteria, but scientists have little insight into how bacteria become ”bad” or ”pathogenic” and cause disease. Now, a team of scientists has described how mutations resulting in the malformation of the lipopolysaccharide transporter — an essential protein for bacterial growth– caused a non-pathogenic Escherichia coli strain to become pathogenic.