A study published in Science Bulletin, based on a plausible global emissions scenario for 2 °C aligned with China’s net-zero pathway, reveals a hidden warming challenge in climate action: aerosols co-reduced with greenhouse gases will gradually diminish their masking effect on global warming, potentially making it difficult to curb the current rate of warming over the next two decades.

Companies undercount emissions from their supply chains by billions of tons, a new study reveals. A new model could help them find and shrink the biggest contributors to their carbon footprints.