BOB:-
Some gases (”greenhouse gases”) let sunlight in, which warms the Earth, and then block that heat from leaving. That’s the “greenhouse effect”, and it’s a natural thing, mostly caused by water vapor.
Man is making excessive amounts of greenhouse gases, mostly by burning fossil fuels. That causes the delicate natural balance to go out of whack and the Earth warms. That’s global warming.
After years of debate, consensus among most of the world’s scientists holds that we are warming the planet. Unless we take steps now to curb global warming, our way of life, our planet, and our children are all in grave danger. There is hope. Each us can make simple decisions
This is the first recognition that atmospheric CO2 emissions will cause ocean waters to violate EPA water quality criteria.The paper also says that carbon-dioxide induced “changes in ocean chemistry within the ranges predicted for the next decades and centuries present significant risks to marine biota” and that “adverse impacts on food webs and key biogeochemical process” would result.
An international team of twenty five leading researchers described the evidence to date regarding the effects of CO2 emissions on the acidity of the world’s oceans.
Global warming is projected to have significant impacts on conditions affecting agriculture, including temperature, precipitation and glacial run-off. These conditions determine the carrying capacity of the biosphere to produce enough food for the human population and domesticated animals. Any short-term fluctuations of the climate can have dramatic effects on the agricultural productivity. Thus, the climate has a direct influence on food supply. Rising carbon dioxide levels would also have effects, both detrimental and beneficial, on crop yields.
The global warming controversy is a debate about the specific causes of the increase in global average air temperature since the mid-1800s, the prediction of additional warming, and the consequences of that warming. An additional issue is whether the modern warming period is unprecedented or within normal climatic variations.
Effects of globalwarming
The net impact of globalwarming so far has been modest, but near-future effects are likely to become significantly negative, with large-scale extreme impacts possible by the end of the century.
The predicted effects for the environment and for human life are numerous and varied. The main effect is an increasing global average temperature. From this flow a variety of resulting effects, namely, rising sea levels, altered patterns of agriculture, increased extreme weather events, and the expansion of the range of tropical diseases. In some cases, the effects may already be occurring, although it is generally difficult to attribute specific natural phenomena to long-term globalwarming.
There are 2.73 people born every second. The human population is now fast approaching six billion. That’s six billion people to feed, clothe, house, and provide health care for. The strain this is putting on the earth’s resources is showing.
Instead of using the best available technology, low-income nations are seeking to advance using the same dirty technology that industrialized countries have used. They are opting for coal-fired power plants, gas guzzling cars, and inefficient factories. Much of this technology was sold to low-income nations by the U.S. and other industrialized nations, so rich nations bear part of the blame. But Exxon and other U.S. companies complain about low-income nations’ pollution while they continue to hawk dirty, inefficient technology in the developing world.
Given the natural variability of the Earth’s climate, it is difficult to determine the extent of change that humans cause. In computer-based models, rising concentrations of greenhouse gases generally produce an increase in the average temperature of the Earth. Rising temperatures may, in turn, produce changes in weather, sea levels, and land use patterns, commonly referred to as “climate change.”
A hot year is normally associated with a vintage year for wine growers but global warming could, by the end of the century, have adverse effects and already poses a major challenge to Vineyards in southern France and California.
“The first studies on the cosequences of global warming show that warming favours the quality of the wine,” said Gregory Jones, an Associate Professor of Geography at the American University of Southern Oregon.
Have you heard about how the world’s getting Warmer? And does it matter? How will it affect you and your family and your friends? How will it affect puppies? What can you do about it?
It is really good that many kids are aware of Global Warming. Kids, you are our future so make yourself well aware in Global Warming.