But it should also be noted that the richest 1 percent of the world's population across countries—those who earn over $100,000 per year—were responsible for more than twice as much carbon dioxide emissions as the poorer half of the world between 1990 and 2015, according to a study published by Oxfam and the Stockholm Environment Institute.
The same study also found that the richest 10 percent of the global population—around 630 million people who earn more than $35,000 per year—were responsible for roughly 52 percent of global emissions during this time. U.S. President Joe Biden delivers remarks and participates in the virtual Leaders Summit on Climate from the White House in Washington, D.C., on April 23, 2021.
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