Human activities—whether burning fossil fuels for electricity or clearing land with fire—are behind climate change. Curb the cutting down of trees or pollution from industry and climate changing pollution will fall.
As climate change continues, more and more ice on land will melt, as seen below. That will contribute to sea level rise but also mean freshwater is no longer available in certain places, to either people or nature. Eventually, over centuries or even millennia, the massive ice sheets of Greenland and Antarctica could melt away.