VENGANTHANKUSI, India – Vijayakumar, 51, was a successful rice grower his entire life until this rainless harvest season. Described by family and friends as a tall, steady man of few words, Vijayakumar seemed unbent by the paralyzing consequences of Tamil Nadu’s deepest drought in 140 years.

The state of the global environment is terrible – and deteriorating. The globalization of industrial production and the consumptive habits of 7 billion people have created the Anthropocene, a geologic age in which the actions of humans are the primary determinant of the Earth’s natural systems. This shift creates a profound new form of environmental interdependence, of which climate change is only the most salient example.

Water security remains an ambiguous concept with an uncharted path to achievement. Water is an essential resource to our survival and livelihoods, yet most countries lack a clear strategy for how to protect and manage it. With increasing rates and sources of consumption, a growing population, and shifting frequency and intensity of rates of precipitation, continued inaction will have serious impacts on our national security, economy, and environment.

The waters of Lake Chad sustain 70 million people in four countries. Beginning in the 1970s, the 25,000-square-kilometer lake began shrinking due to excessive drawdown for agriculture and mining. Now only 10 percent remains. The dwindling water supply devastated food production and fostered massive economic and political tensions. Many experts credit the worsening conditions for contributing to the rise of Boko Haram, an extremist group that has killed 20,000 people and forced 2.3 million more to flee.

The world’s ocean fish stocks are “on the verge of collapse,” according to a special report from IRIN. Already small fishers in poor countries are reeling, turning to ever-more destructive techniques and suffering from poor health and dwindling livelihoods.

It’s often assumed that in the modern era, food security is an achievable goal. But between 2007 and 2008, a confluence of conditions shook the international food system to its core, fueling unrest and riots in more than 40 nations around the world. What’s more, this “perfect storm” may have been only a harbinger of challenges to come, according to a new report by Emmy Simmons of the Center for Strategic and International Studies (CSIS).