Do you think Haitians will look out the bedroom window, see their starving neighbors, and say, uh oh, maybe 5 babies are enough? (birthrate 4.86).
Not.

To decrease carbon emissions on engines requires more filters. More filters require more horsepower. More horsepower requires more fuel. Someone is ignoring physics and it would seem that the two objectives of the Congress are at odds with each other, i.e. more emission controls to burn less fuel. Huh? The "Greens" are also ignoring other complexities. Humans alter their environment to survive at the population levels that currently exist. At the core of that stable environment is carbon energy. Shifting to biofuels destablizes affects not just the energy market but it also global food production by a forced shifting of the supply of a commodity to a higher demand market for energy. If an analysis was conducted before they mandated the shift, they would have verified the market could fill the demand with other products. Without the analysis, in reality, we have interrupted a long term complex production chain and removed a percentage of the output which was previously used for sustaining life. Combine that with higher energy prices to produce the food (oil or biofuels) and dilemma becomes: How many people must starve to death before the food production market can recover and stabilize? Or do the 'Greens' consider them the bottom of gene pool? It is time to start listening to the skeptics of global warming and stop the panic rush toward wrong decisions created by alarmist 'state of fear' tactics.