Can new atomic power reactors really help cut CO2 by 2050? Unfortunately, what is past is prologue. The World Nuclear Association claims that 1,000 new nuclear power plants will be needed by 2050 to combat CO2 buildup and climate change. The MIT estimate also assumes 1,000 nuclear power plants must be in operation by 2050. Using the nuclear trade association’s own calculations shows that these new power plants will offset only 3.9 gigatons of CO2 in 2050; 3.9 gigatons out of 64 gigatons is only 6.1 percent of the total CO2 released to the atmosphere in 2050, hardly enough for the salvation of the polar bears.If those 1,000 nuclear power plants were cheap and could be built quickly, investing in atomic power reactors might still make sense. However, Lazard Financial Advisory and Asset Management, with no dog in the fight, has developed a rubric which estimates that the construction cost of those new power plants will be $8,200,000,000,000. Yes, that’s $8.2 trillion to reduce CO2 by only 6 percent.21st-Century OpportunitiesSurely, that huge amount of money can be better spent on less expensive alternatives to get more bang for the buck. Lazard also estimates that solar or wind would be 80 percent less expensive for the equivalent amount of peak electric output.