Does Global Warming exist? Evidence For:Evidence Against:∙ Methane IncreasingLevels of atmospheric methane, a powerful greenhouse gas, have risen 145% in the last 100 years. Methane is derived from sources such as rice paddies, bovine flatulence, bacteria in bogs and fossil fuel production.∙ Peculiar WeatherRecently, young people in Vietnam noticed strange white stuff covering the fields. They had never seen snow before. It is the coldest spell in the country for 20 years.∙ Carbon Dioxide Increasing in AtmosphereThe atmospheric levels of the greenhouse gas carbon dioxide, have increased since pre-industrial times from 280 part per million (ppm) to 360 ppm, a 30% increase. Carbon dioxide concentrations in the atmosphere are the highest in 160,000 years. Carbon dioxide is a
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