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Keeling Curve. Atmospheric carbon dioxide (CO 2) concentrations from 1958 to 2023. The Keeling Curve is a graph of the accumulation of carbon dioxide in the Earth's atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day. The curve is named for the scientist Charles ...
Ozone depletion and climate change, or Ozone hole global warming in more popular terms, are environmental challenges whose connections have been explored and which have been compared and contrasted, for example in terms of global regulation, in various studies and books. There is widespread scientific interest in better regulation of climate ...
Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere, and a much larger springtime decrease in stratospheric ozone (the ozone layer) around Earth's polar regions. [1] The latter phenomenon is referred to as the ozone hole. There are also springtime polar tropospheric ozone ...
The ozone layer is on track to fully recover from its depletion within the next four decades, a panel of scientists gathered by the United Nations said on Monday.
Thirteen children and teens in Hawaii took the state government to court over the threat posed by climate change. Now they're celebrating a settlement that emphasizes a plan to decarbonize Hawaii ...
Ozone depletion, on the other hand, is a radiative forcing of the climate system. Two opposite effects exist: Reduced ozone causes the stratosphere to absorb less solar radiation, cooling it while warming the troposphere; as a result, the stratosphere emits less long-wave radiation downward, cooling the troposphere.
Overall with climate change, Hawaiʻi is getting hotter. [4] Temperatures of 90 °F (32 °C) and above are uncommon, with the exception of dry, leeward areas. In the leeward areas, temperatures may reach into the low 90s several days during the year, but temperatures higher than these are unusual.
Since 2009 Ward has been arguing that climate change is caused by ozone depletion and not human-derived CO 2 emissions, a hypothesis that is not supported by referred literature.