Learn what goes into growing these staples of holiday festivities, and how they are affected by weather and climate.

Released in 2023, the Fifth National Climate Assessment (NCA5) includes an Art × Climate gallery. This work by Tami Phelps focuses on the changing ecosystem in Alaska.

Officially, the ocean is lagging, but the tropical atmosphere is already looking La Niña-like.

Snowfall totals from Thanksgiving through the first week of December 2024, top 6 feet downwind of Lake Erie.

Students model the effect of greenhouse gases on Earth's atmosphere. They find that greenhouse gases, such as carbon dioxide and methane, are uniquely shaped to catch and pass on infrared radiation, and so they are responsible for the warmth we enjoy on Earth. The children discuss how the addition of greenhouse gases by human activities leads to further warming and what steps we can take to slow it.

Among the changes, the Arctic tundra is now releasing more carbon dioxide to the atmosphere than it stores.

The past decade has been the region’s warmest since at least 1900.

The Arctic tundra, which has been a carbon sink for millennia, has shifted to become a carbon source.

Summer sea ice has been stable near these much smaller extents since around 2007.

Large parts of the North American Arctic had their shortest snow-covered season on record, while parts of Eurasia had a longer-than-average snow-covered season.