How to beat air pollution? Stop burning the fields

Looking at what recycled phosphorus could do for corn in the United States, the country’s number one crop, a study found that we’d need just 37 percent of available recyclable domestic phosphorus to fertilize all of the corn in the country.

Evidence continues to build that humans are contributing to a climate change issue that is nothing but bad news for the planet. Hopeful stories from seven countries, including India, Indonesia, and China, show that efforts to combat climate change might finally be working.

A overview of 2014's Fixes columns - connecting the dots between 60 or so ways that people are trying to change the world.

The breakdown of the ozone layer is one of the most well-known effects of climate change. Citizens enact different ways to protect the atmosphere from a build up of methane gas.

A growing number of people in the famously crowded Tokyo metropolis are becoming ‘city farmers’, planting crops atop tall buildings or deep underground. In an age of detrimental climate change, urban cultivation and green roof agriculture will soon be necessary as food, water and energy resources become scarcer.

Most people are unaware of how much food they waste. Food waste campaigns across the world are using creative marketing to raise awareness and encourage behavior change.

New York City black tar roofs cause a number of environmental problems, including air pollution, heat absorption that raises energy consumption, and storm water runoff in the sewer system. Efforts to turn these old roofs into green spaces cool the buildings, enable the containment of more rainfall, reduce sewer discharge, generate energy, and absorb carbon emissions. New York City has a pilot program offering financial help for green roofs.

A robust population of grizzly bears can be an indicator of healthy land; however, the bears also can destroy grain bins, consume vegetation, and kill livestock. Ranchers work with the Canadian government and local conservation groups to protect their resources with bear-proof grain bins and electric fences.

When cattle die on ranches in Montana, they can attract grizzly bears that can come dangerously close landowners, ranches, and living livestock. Blackfoot Challenge, a coalition of ranchers and landowners who work with the government, collects and composts dead cattle into odorless woodchips. These woodchips are effective at repurposing carcasses into high-way side revegetation projects.

Billions of people around the world lack access to safe sanitation, causing disease and deaths. In Ecuador a foundation developed a cheap, dry, composting toilet for poor rural families.