Covid-19 pandemic, the Global Carbon Project said Friday in its annual assessment.The fall of an estimated 2.4 billion tonnes is considerably larger than previous annual record declines, such as 0.9 billion tonnes at the end of World War II or 0.5 billion tonnes in 2009 at the height of the financial crisis.Also read: Why Hollywood studios’ romance for Bollywood has prematurely souredThe international team of researchers behind the report said emissions from fossil fuels and industry would be around 34 billion tonnes of CO2 equivalent this year -- still a significant chunk of Earth's remaining "carbon budget".Emissions reductions were most pronounced in the United States (down 12 percent) and the European Union (down 11 percent), the Global.