It actually sounds funny to hear or read that global warming is a natural phenomenon when it doesn't exist before. I don't even agree that disasters such as typhoons are natural because it is just one of the causes of global warming.
Global warming is caused by human activities which causes the surge of carbon dioxide level, and other pollutants to our atmosphere. To answer if it's natural? It is clearly not!
Who's to blame? It's the people who are abusing our environment. In fact, probably all of us had contributions to the warming of the earth. Though, there are greedy people who had intensely destroyed portions of the earth. Greed is controlling them including the government who are permissive of their activities. When disasters strike, people will blame God when im fact, people are the ones to be blamed as well.
If you want to save the earth from global warming, it will start from all of us.
Global warming is one of the three major problems caused by the increasing CO2 level in the atmosphere. The other two are the oceans becoming more acidic and the rising sea level. The cause of the rising atmospheric carbon dioxide level is the use of fossil fuels as an energy source during the last 150 years.
The rising acidity of the ocean (due to the dissolving of atmospheric CO2 into seawater) is bad for marine ecosystems. Coral reefs are being destroyed because of it. The rising of the sea level is causing valuable arable land and densely populated areas to be lost to the sea. The salinity of ground water is rising in some coastal areas and making it less suitable for irrigation and use as drinking water.