Well, based on physics and our understanding of climate...Id say we're likely to see climate changes that could cause a negative on civilization...
Not that you care of course.
God conservatives are so dumb it's scary
Back 100 years ago the total amount of CO2 in the atmosphere was 0.03%. That is 3 1/100ths of 1 percent.
In 2000, when Al Gore went shrieking gloom and doom, the CO2 had increased a walloping 1/100th to 0.04% which is 4 1/100ths of 1 percent. Now water vapor which is about 70% of the total atmosphere is the real reason why the temperature goes up or down on a given day, just walk out in DC today where the temperature is 90 degrees(dog days of summer) but feels like over 100, because the humidity is high. So liberals TAX all the carbon products because they can, with the support of the establishment republicans, and if the liberals could, they would be taxing water vapor(Martin O'Malley put a rain tax in Maryland) and you would think after 7 2/3rd years of Obama and his energy taxes must necessarily skyrocket, the oceans would stop rising, and the planet would heal. How is that hope and change working out for you libtards?
The way liberals talk, that the increase in CO2 just sits there in the atmosphere eventually going to kill US, but since they are mind numbed, low information, useful idiots, they don't realize that there is also an increase in plant growth, which thrives with the increase of CO2.
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Scientists have concluded that most of the observed warming is very likely due to the burning of coal, oil, and gas. This conclusion is based on a detailed understanding of the atmospheric greenhouse effect and how human activities have been tweaking it. At the same time, other reasonable explanations, most notably changes in the Sun, have been ruled out.
The atmospheric greenhouse effect naturally keeps our planet warm enough to be livable. Sunlight passes through the atmosphere. Light-colored surfaces, such as clouds or ice caps, radiate some heat back into space. But most of the incoming heat warms the planet's surface. The Earth then radiates some heat back into the atmosphere. Some of that heat is trapped by greenhouse gases in the atmosphere, including carbon dioxide (CO2).
Human activity--such as burning fossil fuels--causes more greenhouse gases to build up in the atmosphere. As the atmosphere "thickens" with more greenhouse gases, more heat is held in. Fossil fuels such as oil, coal and natural gas are high in carbon and, when burned, produce major amounts of carbon dioxide or CO2. A single gallon of gasoline, when burned, puts 19 pounds of carbon dioxide into the atmosphere.
The role of atmospheric carbon dioxide (CO2) in warming the Earth's surface was first demonstrated by Swedish scientist Svante Arrhenius more than 100 years ago. Scientific data have since established that, for hundreds of thousands of years, changes in temperature have closely tracked with atmospheric CO2 concentrations. Since the Industrial Revolution, the burning of coal, oil and natural gas has emitted roughly 500 billion tons of CO2, about half of which remains in the atmosphere. This CO2 is the biggest factor responsible for recent warming trends.