what is global warming?

Global warming refers to an average increase in the Earth's temperature, which in turn causes changes in climate. A warmer Earth may lead to changes in rainfall patterns, a rise in sea level, and a wide range of impacts on plants, wildlife, and humans. When scientists talk about the issue of climate change, their concern is about global warming caused by human activities.We are only responsible for climate changes.By destroying forest and exploring natural resources in a bad way,the balance of nature is effected.

Global warming is the issue of world concern, everyone in the seminar.