The global warming is caused by increased greenhouse gases from human activities.
The impact of global warming, it has allowed us to see frequently. Unusual weather conditions from the original. More severe natural disasters, floods, earthquakes, and severe storms. Unusual heat until someone died. Including new types of epidemics. Or diseases that have disappeared from the world it come back. And vector-borne diseases increase more.
Expected future impacts of global warming will be more severe. We can help reduce global warming in several ways. The main thing is to use energy-saving and planting trees is one way to reduce global warming.