New York is the most trash city on the planet, and in Moscow is one of the most efficient heating systems.
In Moscow, it is one of the largest and most efficient heating systems in the world, New York is the most trash city in the world and consumes energy like a pig , and Tokyo perfectly saves water. These are the results of the study "Metabolism of megacities", showing the consumption of resources by the 27 largest megacities of the planet.
Metropolitan areas - urban areas with a population of more than 10 million people. In 1970 there were 8 such cities around the world, by 2010 their number had reached 27, and by 2020 they could be 37. These urban zones generate 14.6% of GDP, but disproportionately expend resources. The study of an international group of scientists has shown that only 6.7% of the world's population lives in megacities, using 9.3% of electricity and generating 12.6% of garbage.
Growth of number of megalopolises since 1960.
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But this is an “average hospital” result. In New York, 12 million less people live than in Tokyo, but Americans use more energy: its amount is equivalent to one supertanker every 1.5 days. This is 2 million barrels of oil - more than 318 thousand tons of "black gold". The average New Yorker uses 24 times more energy than a Calcutta resident, but he produces 15 times more solid waste.
The population of megacities compared to the results of 2010.
The amount of garbage and GDP per capita in 2011.
Energy consumption is climate dependent. New York and Moscow spend a lot of resources on heating. In Moscow, one of the largest heating systems in the world has been created, allowing to supply 12 million people with heat at home. It is much more efficient than using separate systems for each building.
Another example of the effective work of the metropolis is Tokyo: the authorities eliminate water leaks in the pipes, which made it possible to reduce water losses from this factor to 3 percent. In Rio de Janeiro and San Paolo, 50% of the water flows from holey pipes. In Seoul, a water reuse system has been developed for flushing toilets.
The population of megacities is growing, the amount of energy they use is growing. In China, with its huge population - the highest power consumption per inhabitant of the metropolis. But the study showed that the decisions of the authorities and their desire to create effective systems and use new technologies in the field of public utilities can change this situation for the better.
Metropolitan areas - urban areas with a population of more than 10 million people. In 1970 there were 8 such cities around the world, by 2010 their number had reached 27, and by 2020 they could be 37. These urban zones generate 14.6% of GDP, but disproportionately expend resources. The study of an international group of scientists has shown that only 6.7% of the world's population lives in megacities, using 9.3% of electricity and generating 12.6% of garbage.
Growth of number of megalopolises since 1960.
')
But this is an “average hospital” result. In New York, 12 million less people live than in Tokyo, but Americans use more energy: its amount is equivalent to one supertanker every 1.5 days. This is 2 million barrels of oil - more than 318 thousand tons of "black gold". The average New Yorker uses 24 times more energy than a Calcutta resident, but he produces 15 times more solid waste.
The population of megacities compared to the results of 2010.
The amount of garbage and GDP per capita in 2011.
Energy consumption is climate dependent. New York and Moscow spend a lot of resources on heating. In Moscow, one of the largest heating systems in the world has been created, allowing to supply 12 million people with heat at home. It is much more efficient than using separate systems for each building.
Another example of the effective work of the metropolis is Tokyo: the authorities eliminate water leaks in the pipes, which made it possible to reduce water losses from this factor to 3 percent. In Rio de Janeiro and San Paolo, 50% of the water flows from holey pipes. In Seoul, a water reuse system has been developed for flushing toilets.
The population of megacities is growing, the amount of energy they use is growing. In China, with its huge population - the highest power consumption per inhabitant of the metropolis. But the study showed that the decisions of the authorities and their desire to create effective systems and use new technologies in the field of public utilities can change this situation for the better.
Source: https://habr.com/ru/post/365497/
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