How Brazil's 'Valley of Death' drastically cut pollution

Eight years after a mercaptan spill in Eight Mile, Alabama, its mostly black and working class residents still suffer from respiratory issues, rashes and headaches.

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.

In Oakland, a company created an online crowdfunding platform that allows users to earn interest by financing clean energy projects and gives people with good social intentions a direct line of action. Across the world, there is a growing movement toward people-powered clean energy.

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.

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.

After years of banning labor unions in Bangladesh, garment workers unionized to fight for higher wages and safer working conditions. For women, this isn't traditionally a space they were welcomed in, but now they’re holding their own meetings to ensure women’s safety is ensured on the job.

In Louisville, KY, many people suffer from allergies or asthma and need to take inhalers to assist their breathing. A new inhaler called Propeller Health connects to Bluetooth devices to help patients track their inhaler dosages as a form of self-surveillance. The data collected also has a broader impact, offering scientists insight on people’s breathing patterns in different geographic regions as well as the effectiveness of certain medicated inhalers.

Solar power is an important renewable energy in Germany, but when the sun is out, it can overpower the grid. Likewise, when the sun is not out, the reception of solar power decreases. Germany has piloted battery installations that store solar energy for use when the sunlight is not plentiful and has successfully incentivized citizens to use them to lower costs.