Researchers estimate 10,000 metric tons of plastic enter Great Lakes every year

A new study that inventories and tracks high concentrations of plastic in the Great Lakes could help inform cleanup efforts and target pollution prevention. Researchers found that nearly 10,000 metric tons — or 22 million pounds — of plastic debris enter the Great Lakes every year from the United States and Canada.

All Human-Made Objects on Earth Amount to 30 Trillion Tons

Scientists recently discovered that all objects on Earth created by people adds up to an astoundingly large figure. All of these objects are collectively known as Earth’s “technosphere.” Distributed evenly over the planet’s surface, the technosphere would translate into about 110 pounds (50 kilograms) for every 11 square feet (1 square meter).