A new NASA-led study has solved a puzzle involving the recent rise in atmospheric methane, a potent greenhouse gas, with a new calculation of emissions from global fires. The new study resolves what ...

Large increases in Asian industrial emissions of nitrogen oxides in the next 30 years could lead to a tripling of the acid rain there due to these pollutants. Worldwide, more than 40 trillion grams ...

Tropical forests have been so damaged by humans that they now pollute the planet more than they protect it. The planet's forests and oceans are vital 'carbon sinks' which prevent polluting gases ...