Paris Agreement in 2015, in which 195 nations agreed to a shared goal of keeping the increase in global average temperatures to less than 2°C from preindustrial levels. To achieve this goal, CO2 emissions must be reduced by at least 40 percent below 2015 levels by 2040. Since about one-fourth of CO2 emissions are created by vehicles with internal combustion engines, the expansion of battery-powered transportation provides the only solution.
