Why You Should Always Leave the Cap on a Plastic Bottle Before You Recycle It

iStock.com/sdominick
iStock.com/sdominick

Before you toss another empty plastic bottle into the recycling bin in your kitchen, you might want to make sure the cap is still attached. As Lifehacker points out, when you remove the cap from a plastic bottle, “you’ve essentially thrown it right in the garbage.”

This advice seems to go against everything we’ve been taught in the past. It’s true that bottles and caps are typically made of different kinds of plastic—and that used to pose problems at recycling plants. “In the past the plastics recycling industry was not able to effectively recycle bottles with caps on so the message to remove the cap was created,” the Association of Plastic Recyclers explains on its website.

Recycling technologies have improved since then, and keeping the lid on is no longer an issue. Essentially, the two components are separated naturally in a process referred to as a water bath. The bottles float and the caps sink, making it easy to separate the two materials.

On the other hand, removing the caps can cause them to be improperly sorted early on in the recycling process. Because of their small size, individual caps are often sorted into piles of landfill-bound waste. They are also common ocean pollutants, and can seriously harm marine life if they are ingested. By some estimates, 5 billion plastic caps pollute the environment in California alone each year.

It’s also common for people to crush plastic bottles before placing them in the bin, but that should also be avoided. That’s because they could be confused for paper during the sorting process and end up in the wrong place (at least that's the case if your community uses a single-stream recycling program). “Retaining a 3D form can help containers be successfully sorted,” according to The Association of Plastic Recyclers.

In summary: Dump out any liquids left inside the bottle, replace the cap, and toss it in the recycling bin—but be sure to check with your individual recycling program to see if there are any exceptions to the rule.

[h/t Lifehacker]

Denver's Temperature Dropped a Record 64 Degrees In 24 Hours

Leonid Ikan/iStock via Getty Images
Leonid Ikan/iStock via Getty Images

One sure sign summer is over: On Wednesday, residents of Denver, Colorado were experiencing a comfortable 82-degree day. Just before midnight, the temperature dropped to 29 degrees. Between Wednesday and Thursday afternoon, the Denver airport recorded a differential of 79 degrees down to 24 degrees. At one point on Wednesday, a staggering 45-degree drop was seen in the span of just three hours.

All told, a one-day span saw a 64-degree change in temperature, from a high of 83 to a low of 19, a record for the state in the month of October and just two degrees shy of matching Denver’s all-time record drop of 66 degrees on January 25, 1872. On that date, the temperature plummeted from 46 degrees to -20 degrees.

Back to 2019: Citizens tried their best to cope with the jarring transition in their environment, to mixed success. On Wednesday, the city’s Washington Park was full of joggers and shorts-wearing outdoor enthusiasts. Thursday, only the most devoted runners were out, bundled up against the frigid weather.

The cold snap also brought with it some freezing drizzle which prompted several vehicular accidents, including 200 reported during Thursday's morning commute. It’s expected to warm up some in the coming days, but residents shouldn't get too comfortable: Melting ice could lead to potholes.

[h/t KRDO]

Invasive Snakehead Fish That Can Breathe on Land Is Roaming Georgia

Mohd Fazlin Mohd Effendy Ooi, Flickr // CC BY 2.0
Mohd Fazlin Mohd Effendy Ooi, Flickr // CC BY 2.0

A fish recently found in Georgia has wildlife officials stirred up. In fact, they’re advising anyone who sees a northern snakehead to kill it on sight.

That death sentence might sound extreme, but there’s good reason for it. The northern snakehead, which can survive for brief periods on land and breathe air, is an invasive species in North America. With one specimen found in a privately owned pond in Gwinnett County, the state wants to take swift action to make certain the fish, which is native to East Asia, doesn’t continue to spread. Non-native species can upset local ecosystems by competing with native species for food and habitat.

The Georgia Department of Natural Resources’ Wildlife Resources Division is advising people who encounter the snakehead—a long, splotchy-brown fish that can reach 3 feet in length—to kill it and freeze it, then report the catch to the agency's fisheries office.

Wildlife authorities believe snakeheads wind up in non-native areas as a result of the aquarium trade or food industry. A snakehead was recently caught in southwestern Pennsylvania. The species has been spotted in 14 states.

[h/t CNN]

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