Designers Built a ‘Biological House’ From Upcycled Grass, Straw, and Seaweed

The Danish architectural firm Een Til Een has revealed the latest step forward in sustainable housing: the world’s first “Biological House.”

The home was built using materials made from agricultural waste, including grass, straw, and seaweed, and was conceptualized in collaboration with the Danish Environmental Protection Agency. Not only is the reuse of this material healthier for the environment, it also prevents the harmful effects of burning the waste, which is what normally happens to this type of agricultural residue if there is no use for it, according to Curbed

“It sounds like science fiction that you can build a house from things such as tomato stems, straw and seaweed, which is just as durable as normal buildings and at the time has a healthy economy and complies with the rules,” Danish Environmental Minister Kirsten Brosbøl said. “However, the Biological House shows that it is possible here and now. I appreciate that way we really get some value from materials that otherwise would end up at an incineration plant.”

In addition to the agricultural waste being used for most of the raw building material—including tomato stems and woodchips being turned into composite boards—eco-friendly Kebony wood was used for the home’s outer cladding. According to Kebony, 40 partners were used in the construction of the home, each with an eye toward sustainability and environmental responsibility.

"Being part of this strategic partnership has been a real privilege,” Mona Gøtske, Country Manager Kebony Denmark, said. “[And] we are thrilled to have provided a façade solution for the world’s first Biological House that demonstrates the strength and sustainable values of Kebony in the best possible way.”

The modular home was built on screw piles, which allows it to be moved without tearing up soil the way a traditional concrete foundation would, as Inhabitat reported. Before it was unveiled, Een Til Een constructed this “Biological House” in secrecy in Middelfart, Denmark. But now that the project has been successfully completed, World Architecture News reports that the doors are open for visitors from all around the world to walk in and look upon the house that tomato stems built.

[h/t Curbed]

7 Top-Rated Portable Air Conditioners You Can Buy Right Now

Black + Decker/Amazon
Black + Decker/Amazon

The warmest months of the year are just around the corner (in the Northern Hemisphere, anyway), and things are about to get hot. To make indoor life feel a little more bearable, we’ve rounded up a list of some of the top-rated portable air conditioners you can buy online right now.

1. SereneLife 3-in-1 Portable Air Conditioner; $290

SereneLife air conditioner on Amazon.
SereneLife/Amazon

This device—currently the best-selling portable air conditioner on Amazon—is multifunctional, cooling the air while also working as a dehumidifier. Reviewers on Amazon praised this model for how easy it is to set up, but cautioned that it's not meant for large spaces. According to the manufacturer, it's designed to cool down rooms up to 225 square feet, and the most positive reviews came from people using it in their bedroom.

Buy it: Amazon

2. Black + Decker 14,000 BTU Portable Air Conditioner and Heater; $417

Black + Decker portable air conditioner
Black+Decker/Amazon

Black + Decker estimates that this combination portable air conditioner and heater can accommodate rooms up to 350 square feet, and it even comes with a convenient timer so you never have to worry about forgetting to turn it off before you leave the house. The setup is easy—the attached exhaust hose fits into most standard windows, and everything you need for installation is included. This model sits around four stars on Amazon, and it was also picked by Wirecutter as one of the best values on the market.

Buy it: Amazon

3. Mikikin Portable Air Conditioner Fan; $45

Desk air conditioner on Amazon
Mikikin/Amazon

This miniature portable conditioner, which is Amazon's top-selling new portable air conditioner release, is perfect to put on a desk or end table as you work or watch TV during those sweltering dog days. It's currently at a four-star rating on Amazon, and reviewers recommend filling the water tank with a combination of cool water and ice cubes for the best experience.

Buy it: Amazon

4. Juscool Portable Air Conditioner Fan; $56

Juscool portable air conditioner.
Juscool/Amazon

This tiny air conditioner fan, which touts a 4.6-star rating, is unique because it plugs in with a USB cable, so you can hook it up to a laptop or a wall outlet converter to try out any of its three fan speeds. This won't chill a living room, but it does fit on a nightstand or desk to help cool you down in stuffy rooms or makeshift home offices that weren't designed with summer in mind.

Buy it: Amazon

5. SHINCO 8000 BTU Portable Air Conditioner; $320

Shinco portable air conditioner
SHINCO/Amazon

This four-star-rated portable air conditioner is meant for rooms of up to 200 square feet, so think of it for a home office or bedroom. It has two fan speeds, and the included air filter can be rinsed out quickly underneath a faucet. There's also a remote control that lets you adjust the temperature from across the room. This is another one where you'll need a window nearby, but the installation kit and instructions are all included so you won't have to sweat too much over setting it up.

Buy it: Amazon

6. Honeywell MN Series Portable Air Conditioner and Dehumidifier; $400

Honeywell air conditioner on Walmart.
Honeywell/Walmart

Like the other units on this list, Honeywell's portable air conditioner also acts as a dehumidifier or a standard fan when you just want some air to circulate. You can cool a 350-square-foot room with this four-star model, and there are four wheels at the bottom that make moving it from place to place even easier. This one is available on Amazon, too, but Walmart has the lowest price right now.

Buy it: Walmart

7. LG 14,000 BTU Portable Air Conditioner; $699

LG Portable Air Conditioner.
LG/Home Depot

This one won't come cheap, but it packs the acclaim to back it up. It topped Wirecutter's list of best portable air conditioners and currently has a 4.5-star rating on Home Depot's website, with many of the reviews praising how quiet it is while it's running. It's one of the only models you'll find compatible with Alexa and Google Assistant, and it can cool rooms up to 500 square feet. There's also the built-in timer, so you can program it to go on and off whenever you want.

Buy it: Home Depot

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

Vermont Just Banned Residents From Throwing Food Scraps in the Trash

Compost is delicious trash salad for your soil.
Compost is delicious trash salad for your soil.
svetikd/iStock via Getty Images

Any Vermont resident who has carelessly tossed a watermelon rind into the trash bin this month is technically a lawbreaker.

On July 1, the state passed its Food Scraps Ban, which mandates that all leftover food either be composted or donated. Not only does this include inedible scraps like pits, seeds, coffee grounds, and bones, but also anything still left on your plate after a meal—pizza crusts, for example, or the square of Spam casserole your grandmother served before you could politely decline.

“If it was once part of something alive, like a plant or animal, it does not belong in the landfill,” Vermont’s Department of Environmental Conservation says on its website.

While it might seem like a drastic policy, Vermont has been laying the groundwork—and developing the infrastructure to maintain it—for years. In 2012, the legislature unanimously passed the Universal Recycling Law, which mapped out a step-by-step plan to cut down on landfill waste. Over the years, recyclables, yard debris, and now food scraps have all been banned from landfills [PDF]. To help residents abide by the restrictions, trash haulers have begun to offer pick-up services for the entire range of materials, and the state has budgeted around $970,000 in grant money for compost collection and processing facilities.

According to Fast Company, Vermont officials are hopeful this latest policy will help them hit their long-standing goal of reducing landfill waste by 50 percent; until now, they’ve only been able to achieve a 36-percent decrease. And it’s not just about saving space in landfills. Food decomposes more slowly in landfills, and the process produces methane—a harmful greenhouse gas that contributes to climate change. Composting those scraps enriches the soil (and keeps garbage from smelling so putrid, too).

As for enforcing the Food Scraps Ban, they’re relying on the honor code.

“People say, ‘What does this mean with a food waste ban? [Are] people going to be out there looking in my garbage for my apple cores?'” Josh Kelly, materials management section chief at the Vermont Agency of Natural Resources, told Fast Company. “That’s not the intent of this.”

The lack of consequences might diminish the efficacy of such a law in a different state, but maybe not in eco-friendly Vermont: According to a University of Vermont study, 72 percent of Vermonters already composted or fed food scraps to their animals before the Food Scraps Ban took effect.

Though Vermont is the only state so far to enact an outright ban on trashing food scraps, you don’t have to wait for your state to follow suit to make a change. Here’s a beginner’s guide to composting at home from the Environmental Protection Agency.

[h/t Fast Company]