A hand holding a large piece of clear ice against a light background.

Human Fingerprints on Climate Are Clearer Now

Five climate scientists reviewed three decades of fingerprint research and say rainfall, ocean, snow and stratosphere records now point the same way, while conceding that attributing individual extreme events remains hard.

A modern industrial facility featuring complex machinery and infrastructure under a cloudy sky.

Ethical Investors Trim Emissions, But Some Just Relocate

Companies under pressure from ESG (environmental, social and governance) investors do shrink their own carbon footprint, new research finds, but a meaningful share of that pollution simply resurfaces at suppliers, leaving the combined total largely unchanged.

Shirtless Indigenous man standing by a small fire in a dry, grassy wilderness setting.

Fire Came to the Amazon Only After People Did

A decade-spanning survey of 1,361 radiocarbon dates across the Amazon Basin finds charcoal nearly absent before human arrival and widespread soon after, tracing 10,000 years of fire driven almost entirely by people, not climate.