Replacing Miami’s beach sands costs millions. Here’s how Congress intends to make it cheaper
Miami is out of sand. Last year, Miami-Dade County depleted its offshore sand reserves, meaning miles of beaches that shrink from erosion must be replenished with sand from outside South Florida.
Drones used to map climate change in Zanzibar
In Zanzibar, which is a series of islands off the east coast of Africa, a group is using drones to map the effects of rising sea levels and global temperatures in an effort to combat local climate change.