The global warming is a serious problem that we human being facing nowadays. Many people may not know how serious it is, but the report form scientists shows that if global warming keep going like this, one day our country will all covered by the seawater! It proves that glabal warming is a big issue that we can't be ignore.
There is too much co2 in the air make the average temperature increased. As the average temperature increased, horrible things happened. North Pole and south pole's ice will melted, and the sea-level has risen. Polar bears endangered, and the Penguins endangered, too. The worst of all is that the human beings are also be influenced by sea-level risen. Some of island will all covered by water, and human had no place to live.
Increasing temperatures are not only case the flood, but also cause the drought. And the drought cause the wildfire season longer in the Us. Higher spring and summer temperatures and earlier spring snow-melt result in forests that are hotter and drier for longer periods of time.
Also, the ozone hole gets bigger because of the global warming, it's a really big concern nowadays. People don't realize how the environment is going, but all the detas reveals the earth, the environment is a big issue in this century.
At present, we need to face is the impact of global warming. And how to reduce its impact to us, slowing the rate of global warming. Global warming so that human life has greatly changed. Ecological impact and climate change of the earth become more and more worse, we should start with small thing. Don't think that a person's strength is very weak. If everyone does, force sand into the tower is also very amazing!