United in Science 2020 Report | UPSC
Earth may temporarily pass dangerous 1.5℃ warming limit by 2024, major new report says
WHY IN NEWS:
The report found while greenhouse gas emissions declined slightly in 2020 due to COVID-19, they remained very high
SYLLABUS COVERED: GS 3: Report
For PRELIMS it is important to go through the publisher and key points.
For MAINS this report is very important as it justifies reduction of Carbon dioxide . Take a note of it in your Mains book . Let us dive in !
United in Science 2020 Report
The United in Science 2020 Report has been compiled by the World Meteorological Organization (WMO) under the direction of the United Nations Secretary-General.
- Global Partners : WMO, Global Carbon Project (GCP), UNESCO Intergovernmental Oceanographic Commission (UNESCO-IOC), Intergovernmental Panel on Climate Change (IPCC), UN Environment Programme (UNEP) and the Met Office.
URGENT ACTION CAN CHANGE TRENDS
- Human activities emitted 42 billion tonnes of CO₂ in 2019 alone.
- Under the Paris Agreement, nations committed to reducing emissions by 2030.
- The gap increases to 32 billion tonnes for the more ambitious 1.5℃ goal.
- The report models a range of climate outcomes based on various socioeconomic and policy scenarios.
- It shows if emission reductions are large and sustained, we can still meet the Paris goals .
GREENHOUSE GAS CONCENTRATIONS
- Global Atmosphere Watch Concentrations of the major greenhouse gases, CO2, CH4, and N2O continued to increase in 2019 and 2020.
- Sustained reductions in emissions are required to stabilize global warming.
GLOBAL CARBON PROJECT
- CO2 emissions will decline in 2020 due to confinement policies imposed in many countries.
- At their lowest point, in April, daily CO2 emissions were approximately at the level they were in 2006.
GLOBAL CLIMATE IN 2016–2020 #WMO
- Arctic sea-ice continues its long-term downward trend.
- Global mean sea-level has been rising faster than the long-term trend.
- A greater loss of ice mass from the ice sheets contributed to an increased sea-level rise.
- Major impacts have been caused by extreme weather and climate events.
- A clear fingerprint of human-induced climate change has been identified on many of these extreme events.
TO-DO LIST ON WEATHER CO-OPERATION
- Increased international coordination across national research vessel.
- Flexibility in operations can be implemented through partnership with commercial and local operators.
- Coordinated reseeding of autonomous arrays and expanded consideration of unmanned platforms is necessary.
- Increased resilience through redundancy and complementary networks across surface and space-based platforms.