The rapid thawing of Arctic permafrost is something that you should be worried about. This means more methane and carbon dioxide gets in our atmosphere which in turn makes the planet warmer and speeds up climate change.
Our species has had and continues to have devastating effects on the planet and its creatures. A biodiversity report finds that about 1 million animal and plant species are under threat of extinction because of humans. It’s a staggering number to wrap one’s head around.