A gravity-defying tower aimed at 'sustainable urbanism' has opened in Singapore
https://edition.cnn.com/style/article/singapore-sustainable-tower-building-scli-intl/index.html
When it comes to building new buildings which are in harmony with nature, the easiest way would be planting trees on their roofs. But, it's not common even in temperate zone and tropical zone.
When we consider that sunlight can easily be stored in concrete and asphalt, it would be effective way to decrease such area by planting trees on roofs.
