The U.S. is trying to get out of paying climate damages to poor countries

Activists say the Paris agreement will be "on the verge of collapse" if rich countries don't commit to paying poor countries for devastating climate-related losses.

After a three week catamaran journey across the Atlantic Ocean—and a train ride from Portugal—famed youth climate activist Greta Thunberg arrived in Madrid, Spain on Friday for the United Nations climate change conference known as COP25: the last time nations will come together before the Paris climate agreement is officially implemented in 2020.

Thunber…