IPCC report's Sixth Assessment Report_00.1
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IPCC report’s Sixth Assessment Report

Context

  • Recently the IPCC’s Sixth Assessment Report, titled “Climate Change 2021: The Physical Science Basis” was released by its authors.

 

IPCC report's Sixth Assessment Report_50.1

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Key findings of the report

  • Indian Ocean: warming at a higher rate than other oceans.
  • Effects of climate change on India: will witness increased heatwaves and flooding.
    • Increase in annual mean precipitation over India, with more severe rain expected over southern India in the coming decades.
    • Monsoon extremes: likely to increase over India and South Asia, while the frequency of short intense rainy days is expected to rise.
    • Lengthening of the monsoon over India by the end of the 21st century, with the South Asian monsoon precipitation projected to increase.
  • Ocean warming: would lead to a rise in sea levels, leading to frequent and severe coastal flooding in low ­level
    • India would face significant threats from the rising seas as it has a 7,517 km coastline.
    • Across six Indian port cities — Chennai, Kochi, Kolkata, Mumbai, Surat, and Visakhapatnam — 28.6 million people will be exposed to coastal flooding if sea levels rise 50cm.
  • Global warming: the planet is irrevocably headed towards warming by 1.5 degrees Celsius over pre-­industrial times in the next two decades, mainly due to human activities.
    • The goals of the Paris agreement are unlikely to be met unless extremely deep emission cuts are undertaken by all countries immediately.
    • Projection by report: In the most ambitious emissions pathway, the globe would reach 1.5°C in the 2030s, overshoot to 1.6°C, with temperatures dropping back down to 1.4°C at the end of the century.
    • Recommendation: countries strive to achieve net-zero emissions (no additional greenhouse gases are emitted) by 2050.
    • India has not yet committed to a net-zero timeline.
  • Tropical cyclones are getting stronger and wetter, while arctic sea ice is dwindling in the summer and permafrost is thawing. All these trends will get worse.

 

List of Ramsar Wetland Sites in India

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