More than 40 percent of the garbage that we produce is burned unregulated, estimates a new study led by the National Centre for Atomspheric Research. These fires are responsible for blowing gases and particles into the atmosphere.

With climate change and deforestation we typically focus on how biodiversity gets hit or disappears as a result. But a new study finds that biodiversity is not necessarily lost, but changes instead. Maria Dornelas and her team from St Andrews University in Scotland investigated six million species living on land and in marine environments over the past 150 years.

1.1 billion people in the world don't have access to safe drinking water. In fact, even though it's 2014, we still have 1.6 million people dying from infections caused by the lack of safe drinking water and basic sanitation - 9 out of 10 of these are children under the age of 5.