Thanks to the Montreal Protocol, which brought the major causes of ozone depletion such as chlorofluorocarbons (CFCs) under control, the ozone hole over Antarctica is healing, and global ozone levels are expected to return to 1980 levels by about 2050. But recent studies have found that a lesser

Researchers are developing mathematical models to identify genetic material that could help improve food crops' resilience to climate change. Impacts - such as drought, pest and disease - could hit harvests and undermine global food security. Scientists hope the models will speed up the process of

Waning winds could give the world’s largest oxygen-starved ocean region a breath of fresh air as the planet warms, researchersreport in the Aug. 8 Science. Scientists previously thought the North Pacific dead zone would grow, not shrink, under climate change. Dead zones naturally form at depths of