President Joe Biden would need to implement a massive tax on emissions and conduct a near elimination of natural gas to meet his climate goals, according to left-leaning environmental experts.

Biden will join world leaders at the United Nations' climate change conference in November to discuss his administration's pledge to reduce U.S. carbon emissions by 50 to 52 percent by 2030. While a White House fact sheet claims the goal will "cut … energy costs for families," environmental experts contend Biden must enact policies that would raise taxes on everyday Americans to reach his emissions milestone.

According to Resources for the Future fellow Marc Hafstead, for example, Biden will fall short of his climate objective if he does not implement a tax hike on carbon emissions. The left-leaning World Resources Institute agrees—mitigation efforts without an emissions tax "carry significant uncertainties and fall short" of Biden's goal, its top experts wrote in September. The University of Maryland's Leon Clarke argues Biden would need a "near-complete phase-out" of natural gas-fired utilities and appliances.