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car battery tech is worse than fossil fuels
Maybe humans output more CO2 per mile than some kinds of motors.
If you do a lot of exercise, you burn more, get hotter, give off more CO2.
If you do a lot of exercise, you burn more, get hotter, give off more CO2.
How efficient is human metabolism compare to an internal combustion engine?
Seems he developed a way to transmit energy wirelessly to any point on the globe with almost no loss of energy.
Been reading Tesla's autobiography. Seems he developed a way to transmit energy wirelessly to any point on the globe with almost no loss of energy.
I know you are joking, but if that were true people would lose noticeable weight by breathing heavy.80% of weight loss is breathed out CO2. So if you lose a pound 0.8lbs of that weight loss you breathed out as CO2.
80% of weight loss is breathed out CO2.
just_passing_through says80% of weight loss is breathed out CO2.
My wife (who has two masters and is a dietician) agrees with this statement.
Agreed, using a generator is inefficient, so let's use plugin power. It takes about a kilowatt hour to charge a e-bike for 20 miles. The US Department of energy says producing 1 kilowatt of electricity creates about .92 kg of CO2. So in that case, human and ebike CO2 emissions are about the same.
I've read that reptiles are more energy-efficient than mammals,
It's kind of weird to think about... I'd imagine triglyceride math is different than sugar math though.
Gills big enough to support even a dolphin sized animal would be the size of a parachute and would quickly deplete the surrounding water of oxygen. Warm blooded animals must be air breathers with lungs that take advantage of the 20% atmospheric oxygen.
Some sharks are warm blooded. It's 25 years ago but when I was a pre-med we were told that the definition of warm blooded simply meant that oxygenated blood didn't mix with de-oxygenated blood in the heart. Blood with a higher oxygen content allows for a hotter burn in cells, warming the animal.
https://quillette.com/2021/05/31/the-sad-truth-about-traditional-environmentalism/