Because the enviro-Nazis want nothing to change, ever. These enviro-Nazis have enormous political clout and, as college professors, are brainwashing our future leaders. It is ironic that evolution is change and is the only reason we are here.
Weird. It's like the same mentality people have towards emission controls on vehicles. People don't want any new emission controls yet the change in emissions from one vehicle to the next is different and with more vehicles on the road comes more emissions.