With more people staying at home to avoid the COVID-19 pandemic, CO2 emissions dropped 17 percent during the peak shutdown in early April, according to a study published by the science journal, Nature Climate Change.

The report shows nearly an eight percent reduction in emissions globally this year during unprecedented stay-at-home orders worldwide. The study tracked emissions on a daily basis across 69 countries and by state in the U.S. as people either lost their jobs or worked from home, and travel came to a standstill.

The study showed that the world is on track for the biggest emissions drop since World War II, or maybe even the biggest drop in history. During peak global lockdowns in early April, average daily emissions dropped by 17 percent compared to the 2019 average, hitting their lowest point since 2006, according to the study.

View the report at Nature Climate Change.