Winter wonders: blue moons; ice jams; wiggly jet stream; and cold, cold, cold – let’s go around the world!

2017 was not the warmest year, but it was the most expensive in terms of natural disasters. How were climate change and global warming affecting us last year?

While much of the US freezes, arctic warming is off the charts. Let’s examine weather around the world in December of 2017.

Jet stream bends, weather stalls, snow and rain accumulate, and there’s an omega block in the west. Enjoy this month’s climate change update from meteorologist Jon Plotkin.

Global warming slogs forward, as do attempts to curtail it. Read about COP23 progress and October’s warming trends.

A modest month for global warming. But climate change could be causing catastrophic events such as the California wildfires.

Mother Nature on a rampage: Irma, Jose, and Maria follow Harvey into the record books.

Harvey, Irma, Maria. Is there a global warming connection?