donsutherland1 Posted September 22, 2019 Share Posted September 22, 2019 The United Nations' synthesis report on the latest climate science information has now been released. Some excerpts: Average global temperature for 2015-2019 is on track to be the warmest of any equivalent period on record. It is currently estimated to be 1.1°C above pre-industrial (1850-1900) times and 0.2°C warmer than 2011-2015. Observations show that global mean sea level rise is accelerating and an overall increase of 26% in ocean acidity since the beginning of the industrial era... CO2 emissions from fossil fuel use continue to grow by over 1% annually and 2% in 2018 reaching a new high. Growth of coal emissions resumed in 2017... Global emissions are not estimated to peak by 2030, let alone by 2020. Implementing current unconditional NDCs would lead to a global mean temperature rise between 2.9°C and 3.4°C by 2100 relative to pre-industrial levels, and continuing thereafter. The current level of NDC ambition needs to be roughly tripled for emission reduction to be in line with the 2°C goal and increased fivefold for the 1.5°C goal. Technically it is still possible to bridge the gap... Heatwaves were the deadliest meteorological hazard in the 2015–2019 period, affecting all continents and setting many new national temperature records. Summer 2019 saw unprecedented wildfires in the Arctic region. In June alone, these fires emitted 50 megatons (Mt) of carbon dioxide into the atmosphere. This is more than was released by Arctic fires in the same month from 2010 to 2018 put together. The complete report can be found at: https://wedocs.unep.org/bitstream/handle/20.500.11822/30023/climsci.pdf 1 Link to comment Share on other sites More sharing options...
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