One of the biggest threats the world has ever faced is climate change, and it continues to change inexorably, putting particularly poor and vulnerable regions in trouble. Reducing greenhouse gases and unnecessary consumption is crucial to combat climate change. According to the UN, "to combat climate change and its impacts by 2030, urgent and transformative action is needed to meet the commitments under the Paris Agreement across mitigation and adaptation efforts".
(https://sdgs.un.org/goals/goal13)