This graph compares population projections to 2100 resulting from 2 organisations: the UN Population Division studies fertility-evolution scenarios for produce high, medium and low variant figures, whereas the IIASA bases its calculations on assumptions for fertility, mortality and migration.
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Look for ways to reduce the energy consumption for heating and cooling, for example by sealing windows and doors, insulation or changing the windows. Today it is possible to build ‘carbon neutral’ houses.
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