Global warming is a major problem and is a world threat damage given to humanity and nature in the present. The main problem, which is global warming greenhouse gas is coming from on the world.
Global warming is a serious problem and a threat to the world, the damage to humanity and nature in the current population. The main problem of global warming from greenhouse gases is that on Earth.
Global warming is a big problem, and a global threat that could cause damage to mankind and naturally present very much. The main problems of global warming greenhouse gases is that on earth.