1 Forecast of natural gas production worldwide from 2012 to 2040 (in trillion cubic feet)Global natural gas production forecast 2012-2040. 2  Projected natural gas consumption worldwide from 1990 to 2035 (in million metric tons of oil equivalent)World natural gas consumption. Natural gas prices in the United States and Europe from 1980 to 2030 (in U.S. dollars per million British thermal units)*U.S. and European natural gas price 1980-2030.
Phototrophic organisms convert light energy into chemical energy in the form of ATP. Photosynthetic organisms (photoautotrophs) also use light energy to make both ATP and reduced electron carriers (NADH or NADPH), which are both required to reduce carbon dioxide (CO2) to carbohydrate (CH2O).
where C6H12O6 is glucose. The value of the photosynthetic efficiency is dependent on how light energy is defined â it depends on whether we count only the light that is absorbed, and on what kind of light is used. It takes eight photons to utilize one molecule of CO2. The Gibbs free energy for converting a mole of CO2 to glucose is 114 kcal, whereas eight moles of photons of wavelength 600 nm contains 381 kcal, giving a nominal efficiency of 30%. However, photosynthesis can occur with ...