Hawaii Just Voted to Ban Sunscreen That Harms Coral

iStock
iStock

The widespread death of coral reefs across the planet's oceans in recent decades is the result of several factors—most of them human-made. Now, Hawaii's legislators have taken a major step toward keeping one notorious coral-killer out of its waters. As Gizmodo reports, Hawaii has passed the first law of its kind banning sunscreens with certain chemicals.

The compounds oxybenzone and octinoxate can be found in more than 3500 of the world's top sunscreen brands. Both serve a key role in chemical sunscreen formulas by protecting skin from UV rays, but once they've washed off into the water, they can have a devastating impact on marine life.

According to a 2015 study published in the journal Archives of Environmental Contamination and Toxicology, oxybenzone hurts coral in two ways: It prevents coral larvae from developing normally, and it poisons the symbiotic algae that reside in coral. These algae provide coral with an oxygen source and help clear out their waste, as well as giving reefs their vibrant appearance. If the algae abandon the coral, the reef accumulates waste and gradually turns white—a process know as bleaching. A 2016 study found that octinoxate in addition to oxybenzone can stunt the growth of baby coral.

Sunscreen brands like L’Oréal claim the evidence isn't strong enough to justify the ban, but Hawaii lawmakers felt differently: On Tuesday, May 1, 72 of the state's 76 legislators voted in favor of it. Democratic Governor David Ige has yet to sign the bill into law, but Hawaiian businesses are already clearing their shelves of chemical sunscreens in anticipation of it.

The waters of Hawaii are home to more than 410,000 acres of coral reefs. The island chain also attracts millions of sunscreen-slathered tourists each year, making it a natural spot for the world's first-ever ban on harmful chemical sunscreens. Of all the sunscreen that melts off swimmers' bodies when they enter the ocean, 14,000 tons of it ends up in coral reefs. Banning oxybenzone and octinoxate won't solve the coral bleaching epidemic completely—global warming and ocean acidification are the biggest culprits—but it is a start.

Even if you don't live in Hawaii, you can still choose to buy sunscreen that's easier on the environment. Look for sunscreen brands with simple formulas that feature biodegradable, non-nano-size ingredients (super-tiny nanoparticles in sunscreen are thought to harm marine invertebrates). Instead of these compounds, the brand Stream2Sea uses titanium dioxide coated with alumina to protect against the Sun's rays.

[h/t Gizmodo]

How to Build an Igloo, According to a Canadian Film From 1949

iStock.com/vovashevchuk
iStock.com/vovashevchuk

Centuries before you started building snow forts in your backyard, the Inuit had mastered using snow as construction material. This 1949 video, produced by the National Film Board of Canada (and with narration that uses some outdated terminology), illustrates how exactly people native to the Arctic can erect warm, temporary homes using nothing but a knife and the snow beneath their feet. The artifact was spotted by The Kid Should See This.

The igloo (or iglu in Inuktitut) in this footage takes around 90 minutes to erect, but a similar structure can be built by a skilled person in as little as 40 minutes. To put together the shelter, the two men carve up firm, packed snow into blocks that are about 2 feet tall, 3 feet wide, and 4 inches thick.

After the first row of blocks is placed in a circle on the ground, the builder slices a section of the blocks to create a slope. Each row that's placed on this foundation will spiral upward, creating a shape in which the blocks support their own weight. By the time the keystone block is fitted into the top, the igloo is strong enough to support the weight of a man.

The final steps are carving a doorway out of the bottom of the structure and plugging up the cracks with additional snow from outside. Even on a frigid Arctic night, the temperature of a well-insulated igloo can reach 40 degrees above the temperature outside. And the warmer the igloo gets over time, the stronger it becomes: The heat from the Sun and the bodies of the inhabitants melt the outer layers of the blocks, and that water eventually freezes to ice, giving the home more insulation and structural integrity.

If you aren't ready to build an igloo, here are some less intimidating snow projects to tackle this winter.

[h/t The Kid Should See This]

Charge Your Gadgets Anywhere With This Pocket-Sized Folding Solar Panel

Solar Cru, YouTube
Solar Cru, YouTube

Portable power banks are great for charging your phone when you’re out and about all day, but even they need to be charged via an electrical outlet. There's only so much a power bank can do when you’re out hiking the Appalachian Trail or roughing it in the woods during a camping trip.

Enter the SolarCru—a lightweight, foldable solar panel now available on Kickstarter. It charges your phone and other electronic devices just by soaking up the sunshine. Strap it to your backpack or drape it over your tent to let the solar panel’s external battery charge during the day. Then, right before you go to bed, you can plug your electronic device into the panel's USB port to let it charge overnight.

It's capable of charging a tablet, GPS, speaker, headphones, camera, or other small wattage devices. “A built-in intelligent chip identifies each device plugged in and automatically adjusts the energy output to provide the right amount of power,” according to the SolarCru Kickstarter page.

A single panel is good “for small charging tasks,” according to the product page, but you can connect up to three panels together to nearly triple the electrical output. It takes roughly three hours and 45 minutes to charge a phone using a single panel, for instance, or about one hour if you’re using three panels at once. The amount of daylight time it takes to harvest enough energy for charging will depend on weather conditions, but it will still work on cloudy days, albeit more slowly.

The foldable panel weighs less than a pound and rolls up into a compact case that it can easily be tucked away in your backpack or jacket pocket. It’s also made from a scratch- and water-resistant material, so if you get rained out while camping, it won't destroy your only source of power.

You can pre-order a single SolarCru panel on Kickstarter for $34 (less than some power banks), or a pack of five for $145. Orders are scheduled to be delivered in March.

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