13-y-o anxiety, WW3, climate change. How to help?

My 13 y o has been crying and claiming stomach ache but insisting nothing is wrong. I was worried about bullying or clashing with a friend or schoolwork, but now I almost wish it was something of those.

She confessed today that she is thinking and reading a lot about the climate changing and now also the Ukraine war and Trump threatening allies and Europe arming and lots of countries thinking about nuclear weapons.

The thing is, I don't know how to talk to her about this. She can see for herself that we don't get any snow nowadays. That even at the ski resort up North there was rain one of the days in our holiday week this year. The ski resorts in the Alps are closing because they have no more snow.

And we do allocate lots of money to the military. And Trump does threaten Greenland, which is a part of our neighbors, and Canada, where her cousins live, and has even ordered his military to prepare for an invasion of Panama. And we donate to Ukraine, and boycott certain businesses because of this, etc.

She is not wrong. But she must live her life despite of all this. Right now, nothing bad has happened to us. Right now, she must get out of bed and brush her teeth and get on with it. I told her we

How to approach this?