The amount of carbon dioxide in the atmosphere increased by 2.67 parts per million in 2012, marking the second-biggest jump since levels were first recorded in 1959 and decreasing the chances that the planet will avoid a dangerous temperature increase of 3.6 degrees F (2 C) or higher, U.S. scientists say.
Increasingly warm and humid conditions that are predicted in the coming decades could slash worker productivity 10 percent worldwide by mid-century and could eliminate worker capacity altogether in some regions during the hottest months, a new U.S. study predicts.
In an analysis of labor capacity based on existing
A global temperature increase of 1.5 degrees Celsius could unleash more than 1,000 gigatons of carbon and methane currently trapped beneath Siberian permafrost and accelerate global climate change, a new study says.
In a study conducted in a frozen cave in Siberia,