An economic slowdown, renewable energy growth and the impact of Covid-19 have led to the first year-on-year reduction in India’s CO2 emissions in four decades. Emissions fell by around 1% in the fiscal year ending March 2020, as coal consumption fell and oil consumption flatlined.

The decline in emissions reflects the headwinds already affecting the Indian economy since early 2019, and increasing renewable energy generation. But our analysis of official Indian data across the nation’s entire 2019-20 fiscal year shows the fall has steepened in March, due to measures to combat the coronavirus pandemic. The country’s CO2 emissions fell by an estimated 15% during the month of March and are likely to have fallen 30% in April.

“Globally, we haven’t seen a drop this big ever, and at the yearly level, you would have to go back to World War II to see such a big drop in emissions."

The coronavirus pandemic has forced countries around the world to enact strict lockdowns, seal borders and scale back economic activities. Now, an analysis published Tuesday finds that these measures contributed to an estimated 17 percent decline in daily global carbon dioxide emissions compared to daily global averages from 2019.

The wave of shutdowns and shuttered economies caused by the coronavirus pandemic fueled a momentous decline in global greenhouse gas emissions, although one unlikely to last, a group of scientists reported Tuesday.

As infections surged in March and April, nations worldwide experienced an abrupt reduction in driving, flying and industrial output, leading to a startling decline of more than 1 billion tons of carbon dioxide emissions. That includes a peak drop in daily emissions of 17 percent in early April, according to the study, published in the journal Nature Climate Change. For some nations, the falloff was much steeper.

Global carbon emissions are likely to see their steepest fall this year since the second world war, according to researchers who say coronavirus lockdown measures have already cut them by nearly a fifth. But the team warns that the dramatic drop won’t slow climate change.

The first peer-reviewed analysis of the pandemic’s impact on emissions predicts they will fall between 4.2 and 7.5 per cent on last year. A rise of around 1 per cent had been expected for 2020 before the crisis.

As the coronavirus pandemic forced much of the world into lockdown by early April, daily global carbon dioxide emissions fell by 17% compared with 2019 levels, a new study published May 19 in the journal Nature Climate Change found.

This reduction — which is primarily the result of disruptions to ground transportation and industry — may be one of the single largest emission drops in recorded history, the researchers said. However, they added, it is also likely to be temporary; with lockdown measures already being rescinded, daily global emissions are estimated to return close to 2019 levels by the end of the year, barely affecting the enormous amounts of carbon dioxide clouding our atmosphere and warming our planet more and more each year.

Near-real-time data on carbon emissions reveal the sectors, countries and events that had the most impact, but it is unclear how long the dip will last.

The international response to the coronavirus pandemic has so far slashed global carbon emissions by more than 8%, according to detailed estimates from a pair of independent research teams. That’s roughly three times the annual emissions of Italy. But energy consumption is already rebounding in China and elsewhere, and the pandemic could register as little more than a blip in the climate system as government-imposed lockdowns come to an end.

Government policies during the COVID-19 pandemic have drastically altered patterns of energy demand around the world. Many international borders were closed and populations were confined to their homes, which reduced transport and changed consumption patterns. Here we compile government policies and activity data to estimate the decrease in CO2 emissions during forced confinements. Daily global CO2 emissions decreased by –17% (–11 to –25% for ±1σ) by early April 2020 compared with the mean 2019 levels, just under half from changes in surface transport. At their peak, emissions in individual countries decreased by –26% on average...

The global coronavirus pandemic continues to unfold at a staggering pace, decimating lives, livelihoods and the normal functioning of society, as well as interrupting energy demand and CO2 emissions.

Previous Carbon Brief analysis showed that the crisis temporarily cut CO2 emissions in China by 25%, with emissions still below normal more than two months after the country entered lockdown.