How will effects made by man can extinct us? Scientists have high confidence that global temperatures will continue to rise for decades to come. Human activities, primarily the burning of fossil fuels, have fundamentally increased the concentration of greenhouse gases in Earth’s atmosphere, warming the planet. Natural drivers, without human intervention, would push our planet toward a cooling period. The consequences of changing the natural atmospheric greenhouse are difficult to predict, but some effects seem likely: • On average, Earth will become warmer. Some regions may welcome warmer temperatures, but others may not. • Warmer conditions will probably lead to more evaporation and precipitation overall, but individual regions will vary, some becoming wetter and others dryer. • A stronger greenhouse effect will warm the o...