Post by Andrei Tchentchik on Jan 23, 2020 13:34:00 GMT 2
(.#A.028).- The oceans could become our worst enemies, August 30, 2019.
The oceans could become our worst enemies.
August 30, 2019.
According to experts, glaciers lost nearly 280 billion tonnes of ice a year in the decade before 2015, increasing sea levels by nearly 1.2mm each year. In the photo, Apusiaajik Glacier, Greenland.
UN d**ning report on global warming.
PARIS (AFP) The oceans, sources of life on Earth, could become our worst enemies on a global scale if nothing is done to put a big drag on greenhouse gas emissions, according to a draft report obtained exclusively.
Fish stocks could decline, hurricane damage could increase, and 280 million people would be displaced by rising sea levels, according to the special report of the Intergovernmental Panel on Climate Change (IPCC) ), on the oceans and the cryosphere (ice floes, glaciers, ice caps and permanently frozen ground), which will be officially unveiled on September 25, 2019 in Monaco.
This rich 900-page document is the fourth UN special report issued in less than a year. The equally alarming precedents concerned the goal of limiting global warming to 1.5 degrees Celsius, biodiversity and land management and the global food system.
According to this fourth installment, which compiles the existing scientific data and is seen as a reference, rising sea levels could eventually move 280 million people worldwide. And this, on the optimistic assumption that global warming would be limited to 2 degrees Celsius compared to the pre-industrial era.
With the expected increase in the frequency of cyclones, many megacities close to the coast, but also small island nations would be hit with floods every year from 2050, even in optimistic scenarios.
"CARBON BOMB"
The report also predicts that 30% to 99% of the permafrost, the theoretical frozen layer of soil throughout the year, will melt by 2100 if greenhouse gas emissions continue at the current rate.
The permafrost of the Northern Hemisphere will release a carbon bomb (CO2) and methane (CH4) during the thaw, accelerating the warming.
Phenomena already underway could also lead to a steady decline in fish stocks, on which many people depend for their food. The damage caused by the floods could be multiplied by 100, even up to 1000 by 2100.
The melting of glaciers caused by global warming will give too much fresh water, then too little, to billions of people who depend on it, also points a provisional "summary for decision makers" to be discussed line by line by the representatives of the countries IPCC members, meeting in Monaco from 20 September 2019.
According to the report, sea level rise in the 22nd century "could exceed several centimeters a year", about 100 times more than today.
WORLD SUMMIT
The publication of this report will come after a world climate summit convened by UN Secretary-General Antonio Guterres in New York on 23 September 2019. It wants stronger commitments from countries to reduce their CO2 emissions, while at the current rate, they would lead to a global warming of 2 to 3 degrees Celsius by the end of the century.
F I N.
The oceans could become our worst enemies.
August 30, 2019.
According to experts, glaciers lost nearly 280 billion tonnes of ice a year in the decade before 2015, increasing sea levels by nearly 1.2mm each year. In the photo, Apusiaajik Glacier, Greenland.
UN d**ning report on global warming.
PARIS (AFP) The oceans, sources of life on Earth, could become our worst enemies on a global scale if nothing is done to put a big drag on greenhouse gas emissions, according to a draft report obtained exclusively.
Fish stocks could decline, hurricane damage could increase, and 280 million people would be displaced by rising sea levels, according to the special report of the Intergovernmental Panel on Climate Change (IPCC) ), on the oceans and the cryosphere (ice floes, glaciers, ice caps and permanently frozen ground), which will be officially unveiled on September 25, 2019 in Monaco.
This rich 900-page document is the fourth UN special report issued in less than a year. The equally alarming precedents concerned the goal of limiting global warming to 1.5 degrees Celsius, biodiversity and land management and the global food system.
According to this fourth installment, which compiles the existing scientific data and is seen as a reference, rising sea levels could eventually move 280 million people worldwide. And this, on the optimistic assumption that global warming would be limited to 2 degrees Celsius compared to the pre-industrial era.
With the expected increase in the frequency of cyclones, many megacities close to the coast, but also small island nations would be hit with floods every year from 2050, even in optimistic scenarios.
"CARBON BOMB"
The report also predicts that 30% to 99% of the permafrost, the theoretical frozen layer of soil throughout the year, will melt by 2100 if greenhouse gas emissions continue at the current rate.
The permafrost of the Northern Hemisphere will release a carbon bomb (CO2) and methane (CH4) during the thaw, accelerating the warming.
Phenomena already underway could also lead to a steady decline in fish stocks, on which many people depend for their food. The damage caused by the floods could be multiplied by 100, even up to 1000 by 2100.
The melting of glaciers caused by global warming will give too much fresh water, then too little, to billions of people who depend on it, also points a provisional "summary for decision makers" to be discussed line by line by the representatives of the countries IPCC members, meeting in Monaco from 20 September 2019.
According to the report, sea level rise in the 22nd century "could exceed several centimeters a year", about 100 times more than today.
WORLD SUMMIT
The publication of this report will come after a world climate summit convened by UN Secretary-General Antonio Guterres in New York on 23 September 2019. It wants stronger commitments from countries to reduce their CO2 emissions, while at the current rate, they would lead to a global warming of 2 to 3 degrees Celsius by the end of the century.
F I N.
