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                           Astronomy Picture of the Day   
      
       Discover the cosmos! Each day a different image or photograph of our   
         fascinating universe is featured, along with a brief explanation   
                       written by a professional astronomer.   
      
                                  2022 August 22   
      
                           Earth's Recent Climate Spiral   
               Video Credit: NASA's Scientific Visualization Studio   
      
      Explanation: Is our Earth warming? Compared to the past 250 million   
      years, the Earth is currently enduring a relative cold spell, possibly   
      about four degrees Celsius below average. Over the past 120 years,   
      though, data indicate that the average global temperature of the Earth   
      has increased by nearly one degree Celsius. The featured visualization   
      video depicts Earth's recent global warming in graphic terms. The   
      depicted temperatures are taken from the Goddard Institute for Space   
      Studies' Surface Temperature Analysis. Already noticeable by many,   
      Earth's recent warming trend is causing sea levels to rise,   
      precipitation patterns to change, and pole ice to melt. Few now   
      disagree that recent global warming is occurring, and the   
      Intergovernmental Panel on Climate Change (IPCC) has concluded that we   
      humans have created a warming surge that is likely to continue. A   
      continuation could impact many local agricultures and even the global   
      economy. Although there seems to be no simple solutions, geoengineering   
      projects that might help include artificial cloud creation to reduce   
      the amount of sunlight heating the Earth's surface.   
      
                     Tomorrow's picture: meteor mediterranean   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Phillip Newman Specific rights apply.   
                   NASA Web Privacy Policy and Important Notices   
                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
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