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.

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.

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

There's insurance, and then there's reinsurance - and both are affected by weather and climate. So how are insurers planning for a future where the impact of weather catastrophes meets climate change?

Three ways of dusting for climate fingerprints.