https://www.scientificamerican.com/article/why-co2-isnt-falling-more-during-a-global-lockdown/

About 4 billion people around the world are under lockdown to help stem the spread of the novel coronavirus. Given that huge number, the drop in global greenhouse gases seems almost paltry by comparison.

Forecasters expect emissions to fall more than 5% in 2020, the greatest annual reduction on record. But it’s still short of the 7.6% decline that scientists say is needed over the next decade to stop global temperatures from rising more than 1.5 degrees Celsius.