100% renewable energy is 100% possible and can happen sooner than we think.
It's difficult for a society to have a healthy discourse on its future when people are afraid to gather to express themselves and authorities won't allow it.
While the agreement signed in Paris between 195 nations to combat climate change was historic and significant, it's still vague and lacks the ambition to truly meet the challenge. The next step is to move aggressively toward a transition to 100% clean renewable energy as quickly as possible (that means no fossil fuels, nuclear, or big hydro).