36%
From 1990 to 2000, the world's most developing economies cut the greenhouse gases emissions from energy production by about 55 percent.
The warmth of the sun and the global winds mix the greenhouse gases all round the world, so there is nowhere that has more, or less of the greenhouse gases.
China
The four main greenhouse gases are ozone, carbon dioxide, methane, and nitrous oxide. These gases are said to responsible for the world wide climate change taking place now.
Greenhouse gases readily allow the sun's warmth to reach the surface of the earth. The earth then warms up and begins to radiate heat at longer wavelengths that are blocked by greenhouse gases. A certain amount of greenhouse gases is essential for life on earth as we know it. Without these gases, the world would be far colder than it is now. But the recent increases in concentrations of greenhouse gases are beginning to raise the world's temperature towards unsustainable levels.
Greenhouse gases, specifically:Carbon dioxide from burning fossil fuelsMethane from cattleCFCs from refrigerantsare contributing to the enhanced greenhouse effect that is making the world, as well as the US warmer.
No. Greenhouse gases trap the sun's heat, so they lead to warmer temperatures all around the world, including at the south pole.
Greenhouse gases trap the heat rising from the warmed surface of the earth. Hence, increasing the temperature of earth. This is called the greenhouse effect. If extra greenhouse gases are added, then we have an accelerated greenhouse effect, which causes global warming.
China has now overtaken the USA in this dubious race.
Greenhouse gases are helpful because they keep the earth warm enough for life. They are essential.Too much greenhouse gases are unhelpful because they make the earth too hot. Global warming is causing climate change which may make the world very uncomfortable for our children and grandchildren.
Greenhouse gases, particularly carbon dioxide, are part of the Earth's atmosphere; as such, they cover all of the Earth's surface. The whole world is covered by atmosphere.
Yes. In the absence of greenhouse gases, the world would be some 30 degrees celsius colder. At the other extreme, greenhouse gases contribute to the extreme heat on the planet Venus. So, a normal level of greenhouse gases, including carbon dioxide, is very desirable. The present increase in the level of atmospheric carbon dioxide is considered to be the main cause of increasing average global temperatures.