The report’s authors highlight how countries would need to show comparable rates of year-on-year decline to keep warming below the 1.5ºC target set out in the 2015 Paris climate agreement.

(7/9)🧵
(Ref. 1)

However severe lockdowns and slow deconfinements (as have been announced in the UK 🇬🇧, Norway 🇳🇴 and France 🇫🇷), coupled with the socioeconomic effects of low social confidence and trauma, could cause the annual decrease in emissions in 2020 to be -7.5% (-2,729MtCO2).

(6/9)🧵
(Refs. 1, 4)

It remains to be seen how emissions will continue to evolve across 2020, which are likely dependent on the length and severity of lockdowns globally.

If activities return to normal by mid-June, total 2020 emissions will likely be -4.2% (-1524 MtCO2) relative to 2019...

(5/9)🧵
(Ref. 1)

⚡️ #power has seen a 15% reduction in daily emissions relative to 2019,
🏭 #industry -35%,
🚗 surface #transport -50%,
✈️ and #aviation has seen the largest reduction in emissions, at 75%.
The 🏘 residential sector has seen a modest increase in emissions by 5%.

(4/9)🧵
(Ref. 1, 3)

The study compared 2019 economic activity data and associated CO2 emissions with those from 2020 from six sectors of the economy to determine how Covid has affected emissions.

4/5 sectors analysed showed a decline in daily emissions relative to 2019 levels:

(3/9)🧵
(Ref. 1)

The groundbreaking new study, encompassing 85% of the world's population and 97% of global #CO2emissions, shows lockdowns have reduced daily emissions by 17% globally, equivalent to reducing daily emissions back to 2006 levels! 🗓

(2/9)🧵
(Refs. 1, 2)

5. Presidencia de la República Mexicana (2015) ‘COP21 participants - 30 Nov 2015’. Via Wikimedia Commons.

commons.wikimedia.org/wiki/File:CO...

4. Pippa Fowles/No. 10 Downing Street (2020) 'Boris Johnson Covid-19 presser'. Via Wikimedia Commons.

commons.wikimedia.org/wiki/File:Bo...

3. Mx. Grainger (2020) 'Nearly empty international departures area at PEK [Beijing International Airport] amid the COVID-19 pandemic'. Via Wikimedia Commons.

commons.wikimedia.org/wiki/File:Ne...

2. Pierre Marshall (2021) 'Leicester coronavirus tier 4 alert warning, Horsefair street'. Via Wikimedia Commons.

commons.wikimedia.org/wiki/File:Le...

References:

1. Le Quére, C. et al. (2020) 'Temporary reduction in daily global CO2 emissions during the COVID-19 forced confinement'. Nature Climate Change.

doi.org/10.1038/s41558-020-0797-x.

However, the paper also shows that the high pollution sectors like surface transport are responsive to changes in government policy 🏛 and economic demand 📉.

Emissions reductions are possible, though do you think we are up to the challenge?

(9/9)🧵
(Ref. 1)

While significant, the reduction in 2020 CO2 emissions is likely to be temporary, and emissions are likely to return to usual, if not exceed 2020 levels with calls to delay Green New Deal programmes.

(8/9)🧵
(Refs. 1, 5)

The report’s authors highlight how countries would need to show comparable rates of year-on-year decline to keep warming below the 1.5ºC target set out in the 2015 Paris climate agreement.

(7/9)🧵
(Ref. 1)

However severe lockdowns and slow deconfinements (as have been announced in the UK 🇬🇧, Norway 🇳🇴 and France 🇫🇷), coupled with the socioeconomic effects of low social confidence and trauma, could cause the annual decrease in emissions in 2020 to be -7.5% (-2,729MtCO2).

(6/8)🧵
(Refs. 1, 4)

It remains to be seen how emissions will continue to evolve across 2020, which are likely dependent on the length and severity of lockdowns globally.

If activities return to normal by mid-June, total 2020 emissions will likely be -4.2% (-1524 MtCO2) relative to 2019...

(5/8)🧵
(Ref. 1)

⚡️ power has seen a 15% reduction in daily emissions relative to 2019,
🏭 industry -35%,
🚗 surface transport -50%,
✈️ and aviation has seen the largest reduction in emissions, at 75%.

The 🏘 residential sector has seen a modest increase in emissions by 5%.

(4/8)🧵
(Ref. 1, 3)

The study compared 2019 economic activity data and associated CO2 emissions with those from 2020 from six sectors of the economy to determine how Covid has affected emissions.

4/5 sectors analysed showed a decline in daily emissions relative to 2019 levels:

(3/8)🧵
(Ref. 1)

The groundbreaking new study, encompassing 85% of the world's population and 97% of global CO2 emissions, shows lockdowns have reduced daily emissions by 17% globally, equivalent to reducing daily emissions back to 2006 levels! 🗓

(2/8)🧵
(Refs. 1, 2)