The Earth Day Short Fiction Contest comes from Sapiens Plurum.
Deadline: April 22 2016 (Earth Day).
Your challenge is to personalize the consequences of climate change so readers feel as well as know them. But stories must offer hope, at least a possibility, for without hope people rarely act. Your job, as author, is to inspire scientists and states-persons around the world to live up to the promise of the Paris Climate Change Agreement.
Prizes: $1000, $500, $300, and publication on their website.
More here.