Atmospheric carbon dioxide has been increasing fairly steadily for decades, but methane has accumulated at a more erratic pace. The increase virtually stalled for much of the last decade before resuming after 2007.

The President’s Advisory Committee on University Relations is a mechanism for UCAR members to raise important community issues.

Not all kinds of extreme weather have the same relationship with our atmosphere's increasing burden of greenhouse gas. Here's a summary of what scientists already know and what they're working to nail down.

How one weathercaster puts the weather report into a climate context.

After years of painstaking research, scientists are now developing tools to make faster connections between disastrous weather and climate science.