Rhino horn is the most valuable illegally traded wildlife product in the world, more expensive per pound than either gold or cocaine and much more valuable than elephant ivory. With as few as 25,000 wild rhinos left in Africa, conservationist and law enforcement fight a constant battle with criminal syndicates seeking to kill rhinos and sell their horns to wealthy consumers abroad, many in Asia.

True to essentialist stereotypes, Latin America’s indigenous peoples are the best stewards of the region’s rainforests. But the source of their enthusiasm for environmental protection is more complex than mere ascriptive traits or whether they speak native languages. What’s more, in a development that should be worrying to environmentalists, exposure to the negative effects of extractive industries appears to have a degrading effect on that enthusiasm.

As climate change threatens the stability of ecosystems around the world, the preservation of forests is seen as a “win-win” solution to curbing planet-warming emissions while producing value for developing country economies.

For weeks, the primatologists had followed a group of Grauer’s gorillas over rugged terrain – hacking through dense rainforest; following knife-edged ravines; and crossing a nearly impenetrable mountainous landscape in the eastern part of the Democratic Republic of the Congo (DRC).

Revered for far more than its contribution to Indian civilization, the Ganges represents the goddess of salvation, Ganga. As a symbol of purity in Hindu mythology, the holy river is thought to cleanse believers both spiritually and physically with its waters.

From 1990 to 2013, the notorious tiger poacher Kuttu Bahelia and his extended family – brothers, uncles, and their wives and children – reportedly killed hundreds of tigers and leopards in the tiger-rich Indian states of Maharashtra and Karnataka, according to law enforcement informants and media reports. “Even if half that [estimate] is correct, it is still a very significant number,” says Belinda Wright, who directs the non-profit Wildlife Protection Society of India (WPSI).

The Earth’s front-line defenders are disappearing at an astonishing rate. On average three environmental activists were killed each week in 2015, according to a recent report from the United Nations special rapporteur on the situation of human rights defenders. Global Witness, an international NGO that documents natural resource extraction, corruption, and violence, reports a 59 percent increase in deaths last year compared to 2014. In total, 185 killings of environmental defenders were recorded by Global Witness in 2015.