Thomas Hill – The Conversation

Permafrost is thawing across the Arctic, releasing microbes and organic materials that have been trapped in the frozen ground for thousands of years. NOAA via Wikimedia Commons

January 28, 2021

Thawing permafrost is full of ice‑forming particles that could get into atmosphere

Jessie Creamean, Colorado State University and Thomas Hill, Colorado State University

New research shows that permafrost contains huge amounts of particles that make it easier for cloud moisture to freeze. Thawing permafrost is releasing these ice-nucleating particles.

Not all clouds are the same, and climate models have been predicting the wrong kinds of clouds over the Southern Ocean. Kathryn Moore

June 19, 2020

We caught bacteria from the most pristine air on earth to help solve a climate modeling mystery

Kathryn Moore, Colorado State University; Jun Uetake, Colorado State University, and Thomas Hill, Colorado State University

Climate models have been overestimating how much sunlight hits the Southern Ocean. This is because the clouds there are different from clouds anywhere else. Bacterial DNA helped us understand why.

Contact Thomas for