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New Delhi, Apr 11: Calling upon chief ministers to popularise Aarogya Setu app, Prime Minister Narendra Modi on Saturday said it will an essential tool in India's fight against coronavirus and referred to the possibility of the app being an "e-pass which could subsequently facilitate travel from one place to other".

Interacting with chief ministers through video conference, the Prime Minister mentioned how South Korea and Singapore had got success in contact tracing and said India has made its own effort through the app amid efforts to contain the spread of coronavirus.

A PMO release said that the Prime Minister spoke about popularizing the Aarogya Setu app to ensure downloads in greater numbers.

"He referred to how South Korea and Singapore got success in contact tracing. Based on those experiences, India has made its own effort through the app which will be an essential tool in India's fight against the pandemic, he said. He also referred to the possibility of the app being an e-pass which could subsequently facilitate travel from one place to another," the release said.

The Prime Minister had earlier this week urged people to download the app saying it is an important step in the fight against COVID-19 and its effectiveness will increase as more people use it.

"Aarogya Setu is an important step in our fight against COVID-19. By leveraging technology, it provides important information. As more and more people use it, it's effectiveness will increase. I urge you all to download it," he had said in a tweet.

The app launched earlier this month in public-private partnership enables people to themselves assess the risk for their catching the coronavirus infection.

The app makes its calculations based on a person's interaction with others, using Bluetooth technology, algorithms and artificial intelligence.

New Delhi, Jun 15: Average temperature of India experienced a rise of 0.7 degree Celsius, along with decline in rainfall, significant increase in frequency of very severe cyclonic storms and droughts in over a decade due to human activities, the Ministry of Earth Sciences in its research report said.

The contentions were made in a report issued by the ministry on the impact of climate change. It will be published by Union Minister Harsh Vardhan on June 19.

According to the report, "Since the middle of the twentieth century, India witnessed rise in temperature; decrease in monsoon; rise in extreme temperature and rainfall, droughts, and sea levels; and increase intensity of severe cyclones.

The report, prepared by researchers of the Centre for Climate Change Research, a cell under The Ministry's Indian Institute of Tropical Meteorology, Pune, further stated that there is compelling scientific evidence that human activities have influenced these changes in regional climate.

India's average temperature has risen by around 0.7 degrees Celsius during 1901-2018, it said, adding that the rise is largely on account of GHG-induced warming and partially offset by forcing due to anthropogenic aerosols.

It states that the average temperature over India is projected to rise by 4.4 degrees Celsius, while the intensity of heat waves is likely to increase by 3-4 times by the end of the century.

In the 30-year period between 1986 and 2015, temperatures of the warmest day and the coldest night of the year have risen by about 0.63 degrees Celsius and 0.4 degree Celsius.

According to the report, by the end of the century, the temperatures of the warmest day and the coldest night are projected to rise by approximately 4.7 degrees Celsius and 5.5 degrees Celsius, respectively.

Alarmingly, sea surface temperature of the tropical Indian Ocean has also risen by one degrees Celsius on average during 1951-2015.

"The frequency of very severe cyclonic storms during the post-monsoon season has increased significantly (+1 event per decade) during the last two decades (2000-2018)," it added.

This came in the backdrop of Cyclone 'Amphan' and 'Nisarga' which made landfalls on May 20 and June 3 and killed several people, flattened villages, and destroyed farms.

"This is the first-ever climate change assessment report for India. This report will be very useful for policy makers, researchers, social scientists, economists, and students," said M. Rajeevan, secretary, the Ministry of Earth Sciences.

Besides this, the report also highlighted various other unnerving data on climate change in the country. Both the frequency and extent of droughts have increased significantly during 1951-2016.

The overall decrease of seasonal "summer monsoon rainfall" during the last 6-7 decades has led to an increased propensity for droughts over India.

"In particular, areas over central India, southwest coast, southern peninsula and north-eastern India have experienced more than 2 droughts per decade, on average, during this period. The area affected by drought has also increased by 1.3 per cent per decade over the same period."

The Hindu Kush Himalayas (HKH) also experienced a temperature rise of about 1.3 degree Celsius during 1951-2014.

Several areas of the Himalayas have experienced a declining trend in snowfall and also retreat of glaciers in recent decades. By the end of the twenty-first century, its annual mean surface temperature is projected to increase by about 5.2 degree Celsius.

The summer monsoon precipitation from June to September over India has also declined by around 6 per cent from 1951 to 2015, with notable decreases over the Indo-Gangetic Plains and the Western Ghats, the report further states.