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Nearly a third of the carbon dioxide released into the atmosphere annually can be traced back to bacteria living in the soil, where they break down plant and animal matter for energy.

Montreal - Mice in Canada are mutating and migrating farther north in response to climate change, according to McGill University research released on Monday.

Deforestation in the Democratic Republic of Congo has become a pressing domestic and transnational issue with potentially high environmental costs.

Trophy hunters, as well as poachers who “harvest” the big males—antelopes and deer with the largest horns and antlers, elephants with the longest tusks, or lions with the most impressive manes—are

KOLKATA: A leading economist who was part of the Intergovernmental Panel on Climate Change (IPCC) that was awarded the Nobel Peace Prize in 2007 says it is imperative that cities and states partici

The climate-warming chemicals are hydrochlorofluorocarbons and hydrofluorocarbons (HFCs) used widely used in refrigerators, air-conditioners and aerosol sprays.

A new study has shown that decreasing carbon dioxide levels in the atmosphere led to a phenomenon of increased global cooling one million years ago.

US agriculture was modeled to determine impacts of removing farmed animals on food supply adequacy and greenhouse gas (GHG) emissions. The modeled system without animals increased total food production (23%), altered foods available for domestic consumption, and decreased agricultural US GHGs (28%), but only reduced total US GHG by 2.6 percentage units. Compared with systems with animals, diets formulated for the US population in the plants-only systems had greater excess of dietary energy and resulted in a greater number of deficiencies in essential nutrients.

With the increased frequency of shipping activities, navigation safety has become a major concern, especially when economic losses, human casualties and environmental issues are considered. As a contributing factor, the sea state plays a significant role in shipping safety. However, the types of dangerous sea states that trigger serious shipping accidents are not well understood. To address this issue, we analyzed the sea state characteristics during ship accidents that occurred in poor weather or heavy seas based on a 10-year ship accident dataset.

Conflicting sets of hypotheses highlight either the role of ice sheets or atmospheric carbon dioxide (CO2) in causing the increase in duration and severity of ice age cycles ∼1 Mya during the Mid-Pleistocene Transition (MPT). We document early MPT CO2 cycles that were smaller than during recent ice age cycles. Using model simulations, we attribute this to post-MPT increase in glacial-stage dustiness and its effect on Southern Ocean productivity.

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