A new UN report finds that the true global cost of producing food is $12.7 trillion more than consumers pay at the checkout counter. We pay those uncounted costs in other ways.

Asking users the dollar value of the costs and benefits of walking in exoskeletons is a better way of finding out how users feel about them than measuring calories saved.

Providing government subsidies for emerging clean technologies could unlock their transformative potential.

The Trump administration has used executive orders, deregulation and delays to reduce environmental regulation. Biden administration officials will use many of the same tools to undo their work.

Putting a dollar value on human lives to compare the costs and benefits of stay-at-home orders can have unintended consequences. These researchers found a different way.