The Rev. Sereno Edwards Bishop mobilized ship captains to track the extraordinary sunsets appearing around the world after Krakatau erupted in 1883.

For the third consecutive year, it’s the hottest year ever. A climate scientist explains how these predictions are made and why they’re completely different from forecasting the weather.

Fountains of lava from Hawaii’s Kilauea volcano are dramatic, but the most deadly impacts of volcanic eruptions are toxic gases and ash and mud flows.

Study of natural variability explains slowdowns in the rate of warming in recent decades – and is key to improving climate models.

The bad news: Extreme heat is probably going to stick around for a couple of more years.

Injecting reflective particles into the atmosphere won’t immediately cool the entire planet. A new study shows how parts of the US, China and Europe might still see temperatures rising a decade later.

Blocking the sun by injecting tiny particles in the atmosphere – called solar geoengineering – can lower the Earth’s temperature but has some real costs. Economists run the numbers.

A historian of science and technology says Trump team’s request for names of Department of Energy employees working on climate change recalls worst excesses of ideology-driven science in government.

The Noril’sk nickel deposits In Russia are unique: giant volcanic eruptions 250 million years ago released colossal amounts of nickel into the atmosphere, kickstarting the Great Dying.

The clearest picture yet of the past 2,000 years of global temperatures has shown warming in the last 50-odd years is unprecedented in the last two millennia.