There is overwhelming scientific evidence that Earth is warming and a preponderance of scientific evidence that human activities are the main cause.
If you missed our August 29 tweet chat, here's the transcript. Read what the fire and smoke experts had to say about the FIREX-AQ field campaign and its mission to study what's in the smoke from wildfires and agricultural burning.
A 1°C (1.8°F) increase in average winter air temperature will have a significant impact on Sierra Nevada snowpack, but different parts of the mountain range will respond differently.
As oceans warm, harmful algal blooms move northward into regions where populations have little or no prior exposure.
Reindeer and caribou abundance has declined 56 percent over the past two decades.
Members of the Karuk Tribe in northern California maintain that the age-old tradition of prescribed burning holds the answer to climate adaptation planning in the Klamath River range.
A hot, dry summer has led to drought in Europe in 2018
August 30, 2018