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Carbon beyond cars (You)
Carbon beyond cars (You)
"The average human exhales about 2.3 pounds of carbon dioxide on an average day.
(A person engaged in vigorous exercise produces up to eight times as much CO2
A population of 7 billion people, breathing away for 365.25 days per year, and you get an annual CO2 output of 2.94 billion tons.
International carbon dioxide emissions from fossil-fuel combustion for 2008 topped 34.7 billion tons.
Humans breathe out about 8.5 percent as much carbon as we burn.
The statement that we are a "closed loop" is not entirely true, especially if we are eating a diet high in animal protein.
The process of processing the food, delivering it to the consumer, the fossil fuels used to farm the foodmust also be considered. source
"The CO2 released by humans and livestock through digestion and decomposition is an important part of the urban carbon cycle, but human and livestock respiration may be substantial compared to fossil fuel emissions in areas with high population density such as Manhattan or Beijing.
High-resolution datasets of CO2 released from respiration also have rarely been reported on a global scale or in cities globally.
We estimate the CO2 released by human and livestock respiration at global and city scales and then compare it with the carbon emissions inventory from fossil fuels in 14 cities worldwide". source
Every person emits approximately two tons of carbon dioxide a year from the time food is produced to when the human body excretes it, representing more than 20 percent of total yearly emissions. A study by researchers in Spain confirms for the first time that human excrement contributes to water pollution, primarily caused by nitrogen and phosphorus. source
AI chips can use less energy than normal computer chips for the same results.
AI chips can use less energy than normal computer chips for the same results.
An AI chip uses less than 10 watts of power, while a GPU uses more than 100 watts for the same thing(1).
64 hybrid chips could run AI applications seven times faster than current processors, using one-seventh as much energy(2).
The system is four to sixteen times more energy-efficient than other AI models on conventional hardware(3).
AI could be using more energy ii they are given additional chores which regular computing is not now
doing.
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