Nearly a billion people living in the arid regions of the Himalayas depend on glaciers for their water supply. But with climate change, glaciers have been retreating drastically every year, threatening the life source of villagers like those in the Ladakh region of Kashmir. One engineer, Sonam Wangchuck, has come up with an ingenious feat of engineering to help the villages store glacier water by constructing stupas - or towers - using thorn branches that retain ice in tall structures, which melts and provides clean water for drinking and agriculture during the dry season.

Environmental refugees in Ethiopia flee their country because there are no jobs without healthy land. A group of former refugees have returned to Ethiopia with a business venture in Gergera to improve the land by regreening efforts, foresting, and building water conservation systems. The new businesses demonstrated such positive effects that the region is now on the brink of resettlement due to improved environmental conditions.

Israel has an abundance of water and independence from climate conditions through public ownership and government management of all water, a water-respecting culture, and innovative agriculture practices.

Farmers in California increasingly face water shortages. To help solve the problem, some are looking to Australia, where a national water market has provided an economic solution. By buying and selling water rights, farmers have incentives to reduce consumption.

Rising saltwater caused by climate change is shrinking Bangladesh’s arable land, especially concerning in places with dense populations. But a simple approach of planting crops in vertical containers shows surprising success.