30 percent of the energy sent to Earth bounces back into outer space. Climate change could upend that.

If you’ve ever made the mistake of wearing a black shirt on a sweltering day, you know that dark colors absorb the sun’s heat, while light colors reflect it. Our planet works the same way. White surfaces, like the snow on the world’s glaciers, reflect the sun’s rays back toward space. Darker ones, like forests and oceans, absorb more heat. Overall, about 30 percent of the energy sent to Earth bounces back into outer space, stabilizing the global thermostat. But climate change could upend that balance.

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Your anti-virus software is not enough

There was a time when anti-virus software was the height of computer security, especially if you were a Windows user. But the landscape of threats has changed, and we live in an era of sweeping, global campaigns, like the ransomware “WannaCry” infection and the more recent Ukraine-focused “NotPetya” attack. What role does anti-virus and antimalware software play in keeping your machine safe? We spoke with four security experts to hear what they had to say.

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All good sunglasses have these five things

Almost any pair of sunglasses, even those cheap gas-station shades, can make you instantly look cooler. Decidedly uncool are the benefits that single-digit spectacles can’t afford—like cutting down on glare on sunny or snowy days, and preventing UV rays from slowly cooking your eyeballs. Luxottica, the company behind Ray-Ban and its iconic Wayfarers, has a very particular recipe for the sandwiched stack of materials that make up its Sun RX prescription lenses.

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THIS ELECTRIC SURFBOARD FLIES ABOVE THE WATER, AND ALL OUR DREAMS ARE BECOMING REALITY

Time to hang 10, futuristic bros!

Puerto Rico-based Lift eFoil electric surfboards use a submerged hydrofoil to lift the board clear of the water at speed, in the same way that modern America’s Cup catamarans ride high above the waves.

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