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Tags Current Affairs

New study on climate change

Date: 19 February 2022 Tags: Climate Change

Issue

A new study suggests that different scenarios when earth is warmed by upto 1.8 degrees Celsius and 3.6 degrees Celsius will be based on social system.

 

Details

  • The 2015 Paris Climate Agreement is the most prominent temperature-control goal to limit global temperature below 1.5 degrees Celsius.

  • It will slow the process of global warming by reducing temperature to well below 2 degrees of pre-industrial levels.

 

Human actions to limit global warming

  • Global emission targets of countries are not in line with limiting global warming to under 1.5 degrees.

  • In order to make that happen, global oil and gas production should decline by three percent per year until 2050.

  • The net-zero targets just limit further addition of carbon but they do not help in reducing the existing carbon concentration.

 

Determinants of climate change effects

  • Public perceptions of climate change

  • Future cost and effectiveness of climate mitigation and technologies

  • Response of political institutions to public pressure 

 

The study

  • The study says that scientists must take into account the effects of climate policy and social change while making scientific projections.

  • To identify different variables relevant to the climate-social system, they simulated 100,000 possible future policy and emissions trajectories.

  • Their predictions say that warming will vary between 1.8 and 3.6 degrees Celsius. There is a strong probability of warming between 2 and 3 degrees Celsius at the end of the century. 

  • It further says that, no policies meet the Paris Climate Agreement’s target of limiting warming to 1.5 degrees Celsius. 

  • Key drivers of people’s perception on climate change are improvements in mitigation technology and the responsiveness of political institutions. 

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