Stabilizing the earth's climate depends on cutting carbon emissions fast.
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July 2, 2014 (Investorideas.com renewable energy stocks newswire) Global emissions of carbon dioxide (CO2)-the principal climate-altering greenhouse gas-come largely from burning coal, oil, and natural gas.
Coal, mainly used for electricity generation, accounts for 44 percent of global fossil-fuel-related CO2 emissions.
Oil, used primarily for transportation, accounts for 36 percent of CO2 emissions.
Natural gas, used for electricity and heating, accounts for the remaining 20 percent of CO2 emissions.
Worldwide, fossil fuel subsidies topped $620 billion in 2011, while renewable energy received just $88 billion in subsidies.
Since the Industrial Revolution, the planet has warmed by roughly one degree.
2013 marked the 37th consecutive year of above-average temperatures. Fully 4 billion people alive today have never experienced a year that was cooler than last century's average.
If we continue with business as usual, burning ever more oil, coal, and natural gas, the global average temperature is projected to rise some 11 degrees Fahrenheit (6 degrees Celsius) by the end of this century.
In addition to more widespread drought and more numerous wildfires, climate change brings more extreme heat waves.
In the last decade, daily record high temperatures outnumbered record lows in the United States two to one, and that ratio is increasing.
Crop ecologists have a rule of thumb that each 1-degree-Celsius rise in temperature above the norm during the growing season lowers wheat, rice, and corn yields by 10 percent. Field tests show that this may be conservative.
This century, as waters warm and ice continues to melt, seas are projected to rise some 2 meters (6 feet), inundating coastal cities worldwide, such as New York, London, and Cairo, and agricultural hotspots, like rice-growing river deltas.
Earth Policy Institute's Plan B shows the steps needed to cut global carbon emissions 80 percent.
Cutting carbon emissions involves shifting from fossil fuels to renewable sources of energy, dramatically ramping up efficiency, and protecting and restoring forests and other natural systems.
Published at the Investorideas.com Newswire - Big ideas for Global Investors
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