IPCC report forecasts a future of severe weather

The Indian Ocean is warming at a higher rate than other oceans, India will witness increased heatwaves and flooding, which will be the irreversible effects of climate change. Global warming trends are likely to lead to an increase in annual mean precipitation over India, with more severe rain expected over southern India in the coming decades.

IPCC’s Sixth Assessment Report, “Climate Change 2021: The Physical Science Basis”, said the warming of the ocean would lead to a rise in sea levels, leading to frequent and severe coastal flooding in low-level areas. India’s coastline 7,517 km would face significant threats from the rising seas.

Across the port cities of Chennai, Kochi, Kolkata, Mumbai, Surat and Visakhapatnam 28.6 million people would be exposed to coastal flooding if sea levels rise by 50 cm.

Monsoon extremes are likely to increase over India and South Asia, while the frequency of short intense rainy days are expected to rise.

Models also indicate a lengthening of the monsoon over India by the end of the 21st century, with the South Asian monsoon precipitation projected to increase.

Stating that human activities are causing climate change, the report said the planet was irrevocably headed towards warming by 1.5 degrees Celsius over preindustrial times in the next two decades.

Keeping global warming below 2 degrees Celsius of preindustrial levels by the turn of century and endeavouring to limit it to 1.5 degrees Celsius was at the heart of the 2015 Paris Agreement.

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