Worked on our
Finding 1-Our Changing Climate:
Sea ice has decreased dramatically more than 40% and the thickness of the ice has decreased by 50%. Water evaporation has been increasing causing surface lakes and ice to disappear. US temperature has increased by 1.3 degrees F to 1.9 degrees F. More evaporation and less moisture can cause less productivity of plants and cause more wildfires and non-functional plants. Frost damage is causing more pests and diseases. Global warming over the past 50 years has been caused by humans burning fossil fuels. In the past it’s been volcano eruptions and other natural things. Carbon dioxide has been adding up in the atmosphere in the 1700 due to coal, oil, and gas burning. If we hadn’t done all the things we did, volcans could have cooled the earth. Heat trapping gases such as Carbon Dioxide, Methane, and Nitrous Oxide. They are all caused by humans and are the reason earth is heating up.
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