Carbon emissions warming

One of the main benefits from future use of biofuels would be the reduction of greenhouse gases compared to the use of fossil fuels. Carbon dioxide, a greenhouse gas that contributes to global warming, is released into the air from combustion. Twenty-four percent of worldwide energy-related carbon emissions in 1997 were from the United States. Carbon... 

Natural gas will continue to be substituted for oil and coal as primary energy source in order to reduce emissions of noxious combustion products particulates (soot), unburned hydrocarbons, dioxins, sulfur and nitrogen oxides (sources of acid rain and snow), and toxic carbon monoxide, as well as carbon dioxide, which is believed to be the chief greenhouse gas responsible for global warming. Policy implemented to curtail carbon emissions based on the perceived threat could dramatically accelerate the switch to natural gas. 

Scientists now project that within the next few decades, the capacity of the earth and the oceans to absorb carbon emissions will decline, while vast changes in the Arctic may further accelerate warming. Melting tundra will release millions of tons of methane, a greenhouse gas more powerful than C02. 

In 1997, the parties of the earlier Rio treaty went to Kyoto, Japan to work on carbon emission standards for the industrialized nations. Later that year, the U.S. Senate voted 95-0 against ratifying any global warming treaty that did not require developing nations themselves to reduce carbon emissions. 

In 2000 at the Netherlands, global warming talks broke down over carbon accounting. The United States wished to use its forest area to offsetting some carbon emissions. 

Meyerson, F. A. B. (1998). Population, carbon emissions, and global warming The forgotten relationship at Kyoto. Population Dev. Rev. 24(1). 

UNCTAD, 1992, Combating Global Warming Study on a Global System of Tradable Carbon Emission Entitlements. 

FIGURE 9.11 The avoided energy and carbon emissions per kilogram of PET mechanically recycled. GWP (Global warming potential in CO equivalents). The numbers from other LCA studies can vary shghtly. Source Data from source Kuczenski and Geyer (2009). 

AUen MR, Frame DJ, Huntingford C, et al. Warming caused by cumulative carbon emissions towards the trilhonth tonne. Nature 458(7242) 163—1166, 2009. 

By the mechanism of incorporating carbon into the soil, no-till methods also reduce atmospheric carbon dioxide and thus potentially reduce global warming. Implementation of no-till methods on a world scale, an unlikely scenario, is estimated to be capable of absorbing 90% of global carbon emissions over the next few decades. By 2004 no-till methods were used on about 25% of US farmland, but Canada had already converted one-third of its cropland to no-till by 1991 (Montgomery, 2008)... 

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