Although CO has been demonstrated cross-sectionally to be a reliable proxy for PM2.5 in kitchens where biomass is the primary fuel, little is known about this relationship for personal exposure (McCracken et al. 2013).
And in a country that wants to generate 80percentt of its electricity from renewable sources by 2050, some say pouring investment into fossil fuels makes little sense.
Our fossil fuels are little more than vast stored reserves of solar energy from previous eras.
Environmental Protection Agency chief Scott Pruitt, Interior Secretary Ryan Zinke and Energy Secretary Rick Perry argue that climate change is real, but burning fossil fuels has little to no effect.
Too much fuel or too little fuel could cause it not to ignite or cause it not to fly very far in the air.
Methanol, other than being a carbon-based molecule that can be used for fuel, has little to do with ethanol, the corn-based fuel that has received plenty of deserved scorn during the last several years.
Those cooling systems work by circulating water around the nuclear fuel, producing little runoff.
But from the inside, I needed that fire, that fuel, a little bit more".
He endorsed some of its conclusions, particularly the idea that turning food crops into fuel makes little sense.
