erik: so let me ask you this. we now have a very good idea of what president biden is going to do about the climate crisis. he wants to cut u.s. greenhouse gas emissions to half their 2005 level for the end of this decade. is that aggressive enough, or too ambitious? larry: well, there's 127 countries before we announced this that have already announced some form of initiative towards the reduction of greenhouse gases. unless there's changes in behaviors across all society, not just public companies, not just for disclosure of public companies, if there's not enough investments toward bringing down the green premium of these new technologies, this can't happen. using an example, we had solar and wind technology 30 years ago , and it was really expensive. 50, 60 times -- 50%, 60% greater than the cost of coal. 30 years later, wind and solar is cheaper than coal. we don't have 30 years. so to do this is going to require an enormous change in technology. right now, biofuels are 50% higher than hydrocarbons. green hyd