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The combustion of fossil fuels is largely responsible for the problems of climate change, air pollution, and energy insecurity. A combination of wind, water, and solar power is the best alternative to fossil fuels, the authors write, because renewable energy sources have near-zero emissions of greenhouse gases and other air pollutants, no long-term waste disposal problems, and no risks of catastrophic accidents. Compared with nuclear energy and biomass energy, the authors find that wind, water, and solar power, alone, would not only be advantageous but also feasible to meet 100 percent of the world’s energy needs. They explain how renewable energy systems can be designed and operated to ensure that power generation reliably matches demand; they calculate that these energy sources would cost less than fossil fuels when all costs to society are considered; and they recommend policies for easing the transition to energy systems based entirely on wind, water, and solar power. [ABSTRACT FROM PUBLISHER]

The article focuses on the effort of reducing greenhouse gasses by the World Meteorological Organization and the U.N. Environment Program in the U.S. The project aims to develop innovative ways to cool down the atmosphere. To mitigate such problem, the Intergovernmental Panel on Climate Change had suggests the reduction of the greenhouse gases. Meanwhile, the reduction of methane emission proves to be ecologically friendly in the long run as F. Sherwood, an atmospheric chemist and Nobel laureate at the University of California in Irvine, had said. On the other hand, diminishing the emission of methane and other hydrocarbons such as buthane, ethane and propane would also reduce the tropospheric ozone, a green house gas and a major component of smog.