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| Name | What will happen to India in a 1.5 degree Celsius warmer world? | Climate Change analysis. |
| Video Uploader | Video From Down To Earth |
| Upload Date | This Video Uploaded At 26-09-2022 06:30:06 |
| Video Discription | India was hit by an unprecedented heatwave in March and April of 2022. It recorded the hottest March since record-keeping started in 1902. In fact between March 11 and May 18, 2022, 16 states in India clocked a total of 280 heatwave days, the highest in the last 12 years. All this happened in the year with a strong La Nina presence, a phenomenon known to bring more rainfall and cooler weather to the sub-continent. Climate change is pushing up global temperatures. Currently, the world’s average temperatures have risen by about 1.1 degrees Celsius since pre industrial time. According to the Intergovernmental Panel on Climate Change or IPCC, the average global temperature could breach the 1.5 degrees Celsius mark within the next 18 years. If global temperatures breach this threshold, what will the repercussions on India be? How will this affect India in terms of temperature rise and rainfall? Will the entire country be equally affected or will certain parts of the country heat up more and get lesser precipitation? Down to Earth analysed the latest reports of IPCC released in 2021 to see how temperature patterns and rainfall will change in a 1.5 degree Celsius warmer world. The findings of this analysis are quite alarming. The Himalayan states and Union Territories of India will be the worst affected when global temperatures cross the 1.5 degree Celsius mark according to this Down to Earth analysis. The union territory of Ladakh will be the worst hit with average temperatures likely to be higher by 2.23 degrees Celsius. Jammu and Kashmir will be the next worst affected with 1.76 degrees Celsius; Temperature in Himachal Pradesh is likely to be higher by 1.73 degrees Celsius while Uttarakhand and Sikkim will become warmer by 1.62 degrees and 1.55 degrees Celsius. Temperatures in these five Himalayan states and union territories will be higher than the 1.5 degrees Celsius global average. The sixth Himalayan state, which is Arunachal Pradesh, will be warmer by 1.47 degrees Celsius. The Down to Earth Analysis found that India’s average temperature could be higher by 1.2 degrees Celsius with temperatures in some states staying below the 1.5-degree mark. Arid states like Rajasthan and Gujarat could become warmer by 1.43 and 1.33 degrees respectively. Kerala at 1.31 degrees Celsius, Punjab at 1.27 degrees Celsius, and Chandigarh at 1.26 degrees Celsius will also see substantial temperature increases. On the other hand states like Jharkhand, Bihar, West Bengal and Odisha may record less than 1 degree Celsius temperature rise, keeping India’s overall temperature increase to 1.2 degrees Celsius. The rise in temperatures will also mean an increase in heatwave days across the country. The Indian Meteorological Department considers a temperature over 40 degrees Celsius to declare a heatwave in non-hilly regions of the country. Going by this definition Rajasthan will witness 13 additional days with temperatures upward of 40 degrees, Delhi and Gujarat will witness 12 additional days while Telangana and Andhra Pradesh will witness 10 and 8 days respectively. There is a good possibility that precipitation in India may increase by 10% in a 1.5 degrees Celsius warmer world. But just like the temperature increase, this increase in rainfall may not be uniform across the country. The Northwest parts of India will see a higher increase in precipitation with Rajasthan witnessing the highest increase at 22.87% more rain than the 1850-1900 average. Gujarat with 22.16% and Punjab with 20.54% will see the next highest increase in rainfall. Arunachal Pradesh, Sikkim and Andaman and Nicobar Islands are the only states and union territories that will see a deficit in rainfall. The Down to Earth analysis found that Northwest India shows both enhanced warming and a significant increase in rainfall while Kerala, Tamil Nadu, and northeast India show enhanced warming, but only a nominal increase in rainfall or even a decrease in rainfall. The eastern states of Odisha, West Bengal, Jharkhand and Chhattisgarh show nominal warming and a nominal increase in rainfall. The reasons for such patterns are unclear. There are only partial explanations right now. One of the reasons could be the low-level jet stream responsible for the monsoon rains. This has been moving northwards for the last 30 years. This is one of the reasons why rainfall levels have decreased in Kerala over time. As global temperatures increase the physical effects of climate change will become more pronounced. According to the 2020 report published by German Watch, India is the seventh most vulnerable country to climate change. India witnessed an unprecedented heatwave in its North, West and Central regions and a simultaneous record-breaking flood in Assam and other North Eastern states in the month of March and April 2022. These weather events will only amplify in the future. Down to Earth’s analysis is a timely wake-up call for policymakers to act on climate change now. |
| Category | Science & Technology |
| Tags | Environment | Science | Sustainable Development | health Mobility | Down to Earth | CSE | Centre for Science and Environment | UPSC | Civil service preparations | IAS coaching | COP27 | 1.5 degree celsius | Precipitation | Warming | climate change | india | clmta cahnge |
