So of all the different sources wind and solar seems to be the best... - Bjarke Ingels

Denmark has become a... pioneer in... that only 4% of our waste goes into a landfill, 42% is recycled and 54% is transformed into district heating and electricity. As a power source, 6 pounds of garbage from your kitchens turns into 4 hours of electricity and 5 hours of domestic heating.

[W]e could only place buildings in the footprints of where there had been buildings in the past... a very limited repertoire.

75% of the greenhouse effect is attributed to <chem>CO2</chem>. This is the biggest problem, 14% to methane and the rest nitrous oxide and F-gases. ...F-gases are 3,000 times more impactful than <chem>CO2</chem>. There's just a lot less of it.