Many African nations provide financial incentives in the form of grants, subsidies, or tax credits for sustainable building ...

Low-income favelas would benefit from green roofs but there are two problems: Cost. And a typical design that's too heavy for ...

But in Rio's more than 1,000 low-income favelas, their high cost and heavy weight meant they weren't even considered a possibility. Jessica Tapre repairs a green roof in a bus stop in Benfica ...

Temps soar in Brazil's summer (from December to March). Low-income favelas would benefit from green roofs but there are two problems: Cost. And a... It was a sunny September morning in Rio de ...