Examining How Early Humans Responded to Climate Change
Kevin Uno, a Columbia paleoclimatologist, studies how abrupt changes in climate affected Neolithic human settlement, diet, and abandonment in northwest Africa.
ACToday Columbia World Project Enabling Insurance to Reach a Million Farmers in Ethiopia
Affordable insurance against droughts and other climate risks will help to improve food security and protect smallholder farmers.
Increasingly Mobile Sea Ice Means Arctic Neighbors May Pollute Each Others’ Waters
The movement of Arctic sea ice is expected to significantly increase this century, raising the risk of more widely transporting pollutants like microplastics and oil.
First Study to Relate Antarctic Sea Ice Melt to Weather Change in the Tropics
While there is a growing body of research showing how the loss of Arctic sea ice affects other parts of the planet, this study is the first to also consider the long-range effect of Antarctic melt.
Growing Nitrogen Footprint Threatens Our Air, Water and Climate
A new Columbia study finds that nitrogen emissions from agricultural production in the tropics is likely to increase and, in some cases, overtake temperate climates, exposing more people to polluted air and water.