Major companies pledged funding for Texas water projects. What are results so far?

Israel has grappled with crippling drought for years. But people have learned to use Mediterranean sea water and recycled wastewater to provide the country with enough water for all its needs.

For triple-bottom-line businesses, there are no guarantees that responsible practices will continue after a sale of the company. 'B corp', a new form of corporation in the United States, is one that aims to maximize not just profit, but social and environmental good.

After the drought hit Australia in the early 2000s, city officials had to start thinking seriously about ways to conserve and creatively store their water. External tanks became the solution, storing rain runoff to create an available source of water for Melbourne residents. This solution may not fit every location, but there are other teachable lessons such as taking radically shorter showers.

Laws in Texas and New Mexico, both locked in the grip of a crippling drought, don't do much to actually encourage citizens to conserve water. New conservation laws and financial incentives are trying to change that.

Corporations concerned about their social and environmental impact must also consider the costs. Bcorps, a new form of corporation in the U.S., are using a rigorous certification process to gain consumers trust and boost sales.

Clean water and healthy ecosystems are becoming increasingly difficult to come by. With floating islands and other inventions, eco-entrepreneur Bruce Kania thinks that biomimicry - such as reconstructing wetlands and growing biofilms - can tackle the toughest of water problems.

The company that manufactures Lifestraw, a water purification device, has found a way to distribute their product to impoverished Kenyan families for free, while still making a profit. In the global carbon credit market, businesses receive carbon credits for projects that reduce greenhouse gas emissions. These credits can then be sold to companies who need to offset their carbon emissions, allowing green companies to make a profit off of their small ecological footprint.

Attending college is not always a given option for gifted teenagers from less-than-wealthy backgrounds. National organization QuestBridge creates a way for low-income and minority high-achieving students to go to their dream colleges free of cost.

Lack of reading material is not only a third-world problem – many poor families in the United States lack access to and funds for books. A program that helps get books to into the homes of low-income families can boost literacy, and help publishers, too.

In combatting poverty, a giant informal economic system has quietly emerged in Africa. Women participate in micro-finance organizations that loan money in order to allow them to create businesses and become self-managing.