Yale’s Brian Earp explores the ethical quandaries ahead for relationships on drugs.

What happens when real-life love potions are available on aisle 5 at Walgreens? Yale University ethicist Brian Earp believes that day is not far off — and he’s not entirely for it. Earp is leading the way for how we should approach that delicate moment, when mystery and myth collide with chemical reality.

Now that we understand the neurochemistry, Earp says, we need to stop thinking of love “as a magical thing that happens in our hearts or souls when we meet ‘the right’ person.” People, he says, have the “power to exercise a certain amount of agency over whom and how we love.”

Depleted deposits in shallow waters are forcing gold divers to take even bolder — and more dangerous — moves.

From the days of Spanish colonial rule, the coast of Pinut-an on the central Philippine island of Leyte has drawn explorers searching for gold mixed in the region’s quartz deposits. But it was only in the 1970s that locals started diving into the sea — without any equipment — to search for the precious metal. Now, after half a century of the gold rush, quartz deposits are hard to find in shallow waters. That’s prompting local miners to turn to even more dangerous methods, with only marginally better equipment than their predecessors.

Mongolia is losing its nomadic culture — and its lung health.

When Mongolia established its modern incarnation in 1992 after the fall of the Soviet Union, over half of its population lived as nomads who derived their primary income from herding. These nomads lived in tents with canvas walls and buckled down for the occasional harsh winter. It was one of the least densely populated countries in the world, with just 1.2 million people living in urban areas, and Ulaanbaatar, the nation’s capital, had a population of just 606,000.

That’s all changed, except for the yurts. Desertification as a result of climate change has driven Mongolia’s herders to abandon their nomadic lifestyle and set up their gers — the squat, one-room tents originally made to be dismantled and moved to enable a nomadic lifestyle — permanently on the outskirts of Mongolia’s cities. The resulting districts have had disastrous consequences for the country’s air quality, mainly due to the fact that gers are heated by individual coal-burning stoves.