The united states environmental protection agency (epa) has initiated several programs to regulate the emission of greenhouse gases by human activities. examples include energy star and green power partnership. programs such as those described above are designed to increase or reduce the rate of greenhouse gas emissions in order to speed up or slow the process of global warming.

Programs such as those described above are designed to reduce the rate of greenhouse gas emissions in order to slow the process of global warming.

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that is wrong, its not thymus.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".