LyrArc Article Gist
Cities including London, New York, Paris, Rio de Janeiro, Buenos Aires, Mexico City, Melbourne, Milan, Caracas, Cape Town, Copenhagen, Vancouver, have pledged to become carbon neutral by 2050.
Reducing transport emissions is a big challenge. London has Ultra low Emission Zone which encourages people to switch to low emission vehicles. Paris is creating 650 kilometres of cycling paths and plans to open up the whole city to bicycles by 2026. Buildings have a large carbon footprint - producing 38% of global carbon emissions. Of this 11% are in the construction materials of steel and concrete, Wood is an alternative material that is being tried in buildings. Passive heating is a way to heat or cool buildings by building underground canals around a building and using the natural temperatures of the earth to cool or heat the air above. This is seen in the Energon building in Ulm, Germany.