Carbon dioxide, most tenacious greenhouse gas, hits another atmospheric high

Carbon dioxide, most tenacious greenhouse gas, hits another atmospheric high


Human activity has once again driven the atmospheric concentration of carbon dioxide to a new high — and the isotopes prove it  The latest Greenhouse Gas Bulletin put out by the World Meteorological Organization said its concentration in 2018 clocked in at 407 8 parts per million, “or 147% of pre-industrial levels in 1750,” the UN body said in a statement Monday Advertisement  “This continuing long-term trend means that future generations will be confronted with increasingly severe impacts of climate change, including rising temperatures, more extreme weather, water stress, sea level rise and disruption to marine and land ecosystems,” researchers said in the press release “CO2 remains in the atmosphere for centuries and in the oceans for even longer.”  Moreover, the meteorological group said, the 2017-18 increase surpassed the past decade’s average growth rate  The report differentiates between concentrations of warming gases and emissions, as BBC News explained Emissions are the amount of gases discharged into the atmosphere, while concentrations are what the air contains after the emissions are absorbed by oceans, land and trees, BBC News said [More News] Final remains of 39 men and women found dead inside truck arrive in home country of Vietnam »  The report also measures which concentrations originate in human activity and which are from natural processes by noting the isotopes  “Fossil fuels were formed from plant material millions of years ago and do not contain radiocarbon,” the WMO said “Thus, burning it will add to the atmosphere radiocarbon-free CO2, increasing CO2 levels and decreasing its radiocarbon content And this is exactly what is demonstrated by the measurements.” #Greenhouse gas concentrations hit a new record high Future generations will face increasingly severe impacts of #climatechange, incl rising temperatures, extreme weather, water stress, sea level rise, ocean acidification, disruption to ecosystems #COP25https://t.co/xA9sblfJrD pic.twitter.com/JfL1YQUgPE— WMO | OMM (@WMO) November 25, 2019  Among the other major greenhouse gases, methane and nitrous oxide concentrations also rose more markedly than in the previous decade, the researchers said [More News] Leonardo DiCaprio responds to Brazilian president’s bizarre claim that he helped fund Amazon rainforest wildfires »  Methane, the second most important long-term greenhouse gas, reached a new high of 1869 parts per billion in 2018 and is 250% above pre-industrial levels The 2017-18 increase was higher than the one from 2016 to 2017. While 40% of it is emitted by natural sources such as wetlands, 60% emanates from cattle breeding, rice agriculture, fossil fuel exploitation, landfills and biomass burning, the statement said Most Read Bronx boy’s fatal collapse in school lunch line was a homicide caused by mother’s slashing months before, ME says Drunk Kid Rock hauled off stage after profanity-laced anti-Oprah rant Hero immigrant used 5-foot long narwhal tusk to take down London Bridge terrorist  Nitrous oxide, for its part, eats away at the ozone layer In 2018 it was at 331.1 parts per billion, which is 123% of pre-industrial levels, with an accelerated growth rate similar to that of methane About 60% of it comes from natural sources, but 40% comes from human activity.  Despite all the international agreements and attempts to curb the processes and practices that pour these gases into the atmosphere, the lack of progress is worrisome, the World Meteorological Organization said [More News] Albania has finished search and rescue operations after tragic earthquake as death toll hits 51 » “There is no sign of a slowdown, let alone a decline, in greenhouse gases concentration in the atmosphere despite all the commitments under the Paris Agreement on Climate Change,” said WMO Secretary-General Petteri Taalas in the statement “We need to translate the commitments into action and increase the level of ambition for the sake of the future welfare of mankind ”  Most concerning is the gases’ warming effect on the climate, known as radiative forcing Total radiative forcing has increased by 43% since 1990, with CO2 accounting for about 80% of this, the society said, citing figures from the US National Oceanic and Atmospheric Administration Methane contributes 17% and nitrous oxide 6%.  “It is worth recalling that the last time the Earth experienced a comparable concentration of CO2 was 3 to 5 million years ago,” Taalas noted “Back then, the temperature was 2-3°C warmer, sea level was 10-20 meters higher than now ”

Posts created 40981

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Posts

Begin typing your search term above and press enter to search. Press ESC to cancel.

Back To Top