I don't feel hopeless because I understand that we are being manipulated by these apocalyptic predictions. They will not pan out. Really diving into the projections from the Intergovernmental Panel on Climate Change, RCP4.5 and RCP6.0 are the most likely of the scenarios. This news headline isn't really "news." We basically knew we had already reached this point. Everyone keeps focuses on the high-emissions scenario, which is unlikely.
Yes it's telling that the people who are spreading all the worst of the climate FUD are the same people who want to provide the solutions or be in power. Fear is always an effective strategy to push political change. That's a big part of what is going on here.
The arctic methane emission doomsday has already been debunked. https://www.eenews.net/stories/1063719007
Climate change caused by co2 is an important problem to solve, but it is not the end of civilization.