I've been able to get to within about 10 miles of Kirkuk -- able to see the oil capital of the north: a burning flare, a harmless flare, burning off gases from one of the major oil fields on the outskirts of Kirkuk.
Hydroelectric dams are under assault for killing fish, biomass burning produces greenhouse gases just as fossils do, and geothermal power releases toxic ground and water contaminates.
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That means industry is going to have to find ways to reduce energy use, because most greenhouse gases come from burning coal, oil and other fossil fuels.
It is important to note, however, that human-induced emissions of greenhouse gases from the burning of fossil fuels for transportation and energy generation are the main sources of air pollution, said Wotawa.
Those heat-trapping gases are from the burning of fossil fuels like coal, oil and gas.
Greenhouse gases, which come mainly from burning fossil fuels, are thought to cause rising temperatures.
The campaign group said that there were more efficient methods of burning gas for power which would reduce emissions of greenhouse gases and could create more jobs.
Fuel cells offer several advantages: they do not have moving parts and there is no burning involved, so there are negligible emissions of environmentally harmful gases like nitrogen, sulfur oxide and carbon monoxide.
Current models show that Earth is getting warmer and warmer due to increased emissions of carbon dioxide from the burning of fossil fuels and other human-induced emissions of greenhouse gases.
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Improvements in yield reduced the need to convert forests and other natural environments to farmland, which typically involves burning of trees and other plants, and which in turn produces carbon dioxide and other greenhouse gases.
The academics advocate concentrating first on short-term fixes for greenhouse gases or other warming agents, such as black carbon - particles emitted from the incomplete burning of fossil fuels, principally in diesel engines and wood stoves.
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