Here's another one that's particularly relevant to this forum. There are a number of different solutions for this problem, including carbon neutral or even carbon negative concrete, LED lighting, the use of low carbon electricity (i.e. nuclear power), passive heading and cooling, and a range of others.
https://www.citylab.com/environment/...eutral/569644/
"If cities are going to curb the rise of global temperatures to less than 2 degrees Celsius, they’ll have to address the single largest contributor, by sector, to their carbon footprint: buildings.
Buildings account for roughly 50 percent of a city’s total carbon emissions, and 70 percent in major cities like London, Los Angeles, and Paris.
The ultimate goal, as laid out by the World Green Building Council at COP 21 in Paris in 2015, is that by 2050—when 68 percent of the world’s population is projected to live in urban areas—all buildings will only use as much energy as they generate..."
See also:
https://www.dezeen.com/2019/05/28/fo...mmitment-2030/
https://www.dezeen.com/2017/10/04/no...inable-office/