Global Warming7
-
Scientists Track Deep History of Planets’ Motions, and Effects on Earth’s Climate
Scientists are developing a geologic record of how other planets have influenced the orbit of Earth, and thus its climate, over the last 200 million-plus years.
-
New Tree Ring Analysis Method May Open Insights to Past Climate
Measurements of stable isotopes in tree rings may expand the climate information that scientists can get from old trees.
-
Wallace Broecker, Prophet of Climate Change
Wallace Broecker, a geochemist who initiated key research into the history of earth’s climate and humans’ influence upon it, died Feb. 18 in New York. He was 87.
-
Confirming Long-Term Trend, 2018 Was Fourth Warmest Year on Record
Earth’s global surface temperatures in 2018 were the fourth warmest since modern record keeping began in the 1880s, according to independent analyses by NASA and the National Oceanic and Atmospheric Administration.
-
Climate-Driven Fires Could Turn Yellowstone Forests to Grassland By Midcentury
A new study shows that some of Yellowstone National Park’s forests may be at a climate tipping point, and could be replaced by grassland by the middle of this century.
-
Wildfire Experts: A Journalist’s Guide
A guide to wildfire experts at the Earth Institute.
-
Researchers Say an 1800s Global Famine Could Happen Again
The Global Famine was one of the worst humanitarian disasters in history, killing as many people as World War II. A new analysis suggests it could happen again, only worse because of climate change.
-
How Climate Change Will Alter Our Food
As the world population continues to grow, global demand for food could increase dramatically by 2050. Yet the impacts of climate change threaten to decrease the quantity and quality of our food supplies.
-
James Hansen’s Climate Warning, 30 Years Later
Three decades after Hansen first warned Congress about global warming, the overwhelming scientific consensus is that he was right—and most would say that far too little has been done to address the threat.
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
