What’s Growing On at The Plant?, onEarth
On the southwest side of the Windy City, a former meatpacking plant is now the home of The Plant, an incubator of 16 food start-ups. Tenants work together in order to be as sustainable as possible — literally, one business’s trash is another’s storage container, recipe ingredient or energy source. The long-term plan for this urban agricultural experiment? Sprout numerous Plants across the nation.
Life as a Young Athlete in Flint, Michigan, Bleacher Report
In a city under siege by its poisoned public water system, hometown heroes are using basketball to raise awareness and kids’ spirits. Kenyada Dent, a guidance counselor and high school hoops coach, uses the game as a tool to motivate his players towards opportunities outside of the struggling city; another coach, Chris McLavish, organized a charity game featuring former collegiate and NBA players that grew up in Flint. The activity on the court doesn’t make the tap water drinkable or erase the damage already inflicted, but it does bring much-needed joy to a city overcome with despair.
Truancy, Suspension Rates Drop in Greater Los Angeles Area Schools, The Chronicle of Social Change
A suspension doesn’t just make a child miss out on a day of learning, it also increases the likelihood that he’ll go to prison. Because of this, many school districts in the Golden State now implement restorative justice practices — a strategy that uses reconciliation with victims as a means of rehabilitation — instead of traditional, punitive disciplinary measures. Suspension rates and truancy filings have decreased, but racial discrepancies still exist when analyzing discipline statistics.
MORE: Suspending Students Isn’t Effective. Here’s What Schools Should Do Instead
Tag: lead
What Toxic Chemical Can Be Used to Make Solar Cells?
How many times have you gone to use your TV remote only to find that its batteries are dead?
Another dead battery is useless, right? Well, not to researchers at MIT, which have found another way to use these lifeless objects: recycling their main ingredient — lead — to create solar cells.
Lead is a toxic substance that not only causes a multitude of medical problems but is also linked to spikes in violent crime. That’s why many governments have outlawed it from being used in paint and gasoline, as well as requiring battery manufacturers to recycle their product.
However, while the recycling process was working, there’s a slight hitch now. With the introduction of non-lead batteries, such as lithium-ion ones, there isn’t going to be as much of a need to recycle the old lead-filled ones, according to Fast Company.
So what’s going to happen to all that lead?
Fortunately, MIT researchers discovered the ability to use lead to produce solar cells from a material called perovskite, a mineral that’s incredibly energy efficient. Not only is it cheaper than the silicon used in today’s cells, but it also converts solar energy to electricity at a little less than 20 percent. To top it off, the mineral is highly flexible — meaning that the cells it makes are 100 times thinner than human hairs and can bend easily, reports Fast Company.
Normally, acquiring the lead would be a problem, but with all of these excess batteries, researchers have found their supply. From each battery, about 30 solar cells could be made.
Unfortunately, there aren’t any plans to commercialize this product. MIT researchers are leaving that to other companies, such as the U.K.’s Oxford PV, while they work on a lead-free perovskite solar cell.
But for the time being, those old batteries are being put to good use and given a second life.
Who would’ve thought something so toxic could be so energy efficient?
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