According to Planet Save:
One of the biggest issues facing us right now is global warming. Its effects on animals and on agriculture are indeed frightening, and the effects on the human population are even scarier. The facts about global warming are often debated in politics and the media, but, unfortunately, even if we disagree about the causes, global warming effects are real, global, and measurable. The causes are mainly from us, the human race, and the effects on us will be severe.
CLICK HERE to read Global Warming Effects and Causes: A Top Ten List by Derek Markham.
If you have time, please read What Is Causing Global Warming? by Zachary Shahan.