These Americans Are Just Going Around in Circles. It Helps the Climate.

To develop new demolition standards, the Detroit Building Authority brought together a best practices working group that met biweekly. Under the new system, a pre-demolition review takes place to, among other things, plan out what will be recycled or salvaged. When an excavator claws through a building, a water truck or fire hose has to be dousing the structure to inhibit the reach of particulate matter—limiting the environmental and health impacts.

Many wildlife are killed each year as they are hit by cars when crossing highways. Montana built crossing structures over high risk sections of highways, such as grass covered tunnels, for animals to cross safely and reduce car accidents.

As a state with robust populations of wildlife, Montana has had its share of roadkill. Its Department of Transportation developed animal shelving, a type of wildlife crossing, to enable safe passage for small animals who need to cross the road. The measure, combined with other types of crossings, has reduced animal-vehicle collisions by half.

New water management technology implemented along the Columbia has significantly helped the fish population - specifically salmon - return to healthy numbers and has restored much of the community and industry that revolves around the river, including for native peoples.

While California is experiencing its worst drought in history, The World Bank estimates that water systems worldwide have real losses (leakages) of 8.6 trillion gallons per year, about half of that in developing countries. A new leak detection system aims to save 10 billion gallons of water, 7 million gallons of diesel, and 33 gigawatts of electricity over 10 years.

The U.S. government has developed different sensors for irrigation devices that gauge water demand and help conserve use. as water shortages caused by drought have increased across the globe, and farmers are faced with economic burdens, such technology is focusin on sustainability for the future.

During rain seasons in Bangladesh, rivers flooded villages and their agriculture so that local economies and food supplies were in jeopardy. A Bangladeshi non-profit Shidhulai Swanirvar Sangstha introduced small floating farms designed to be run by women. Consequently, the organization has initiated 40 floating farms that serve 300 rural women and save local agriculture.

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.

South Dakota’s “24/7 Sobriety” initiative breathalyzers tens of thousands of people every day in an effort to curb drunk driving. Rather than legislation that takes penalizes offenders by taking away their license, the state addresses the behavioral issue instead. In counties that use the “24/7 Sobriety,” they’ve seen a 12% decrease in repeat drunken-driving arrests.

Traffic fatality rates are slowly climbing in today's world of texting-while-driving. But highway agencies are increasingly using humor and wit to try to get people to drive safer.