A global effort to transition to 100 percent renewable energy by 2050 would cost nations $73 trillion upfront — but the expense will pay for itself in under seven years, according to a new report from researchers at Stanford University. The study also found that the shift to a zero-carbon global economy would create 28.6 million more full-time jobs than if nations continue their current reliance on fossil fuels.

The report, published in the journal One Earth, presents detailed roadmaps for how 143 countries that account for 99.7 percent of all global greenhouse gas emissions could successfully transition to 100 percent renewable energy by 2050. The report is a follow up to a 2015 study by the same research team that generated state-by-state plans for the United States, findings that helped lay the groundwork for the Democratic Party’s proposed Green New Deal.

“There are a lot of countries that have committed to doing something to counteract the growing impacts of global warming, but they still don’t know exactly what to do,” Mark Jacobson, a civil and environmental engineer at Stanford and lead author of the new report, said in a statement. “How it would work? How it would keep the lights on? To be honest, many of the policymakers and advocates supporting and promoting the Green New Deal don’t have a good idea of the details of what the actual system looks like or what the impact of a transition is. It’s more an abstract concept. So, we’re trying to quantify it and to pin down what one possible system might look like. This work can help fill that void and give countries guidance.”