It has started already. The earth is gradually warming.
No, global warming probably started in Britain with the invention of the steam engine and the start of the Industrial Revolution. The discovery that coal was readily available underground and that it burned so easily was the trigger for global warming.
global warming
global warming!!!!!!
it will pollute the Earth and start Global Warming
by stopping the global warming and start recycling and caring about the earth
drugs, global warming, or the soviet union.
There is no such thing as "a global warming" global warming only happens to earth because human and our unruly decrease in the earths resources. HUMANS cause global warming.
An ocean can become bigger when glaciers start melting (Global Warming does this)
The meaning of global warming in Filipino is "pandaigdigang pag-init."
Global warming is not natural, it is caused by people. Since there aren't people on Neptune, it cannot have global warming.
Humans did not start global warming. It is a natural phenomena. However our societies are certainly accelerating it. The extent of that acceleration is hotly debated and a cause for considerable controversy.
Yes, global warming is anthropogenic, which means 'caused by human activity'. Humans began burning fossil fuels (coal, oil and natural gas) at the start of the Industrial Revolution, 200 years ago. Over the years this has added billions of tonnes of carbon dioxide to the atmosphere, and is the main cause of global warming.