Three man-made "trees" have been placed in the city of London, England. Actually, the towers made of different types of moss(and a bench for sitting), were erected to help lower pollution levels in the capital city. The moss towers exhale oxygen and take in carbon-dioxide. Scientists say that one of these towers does the job of 275 real trees, helping to clean the air. An irrigation and energy system (using solar panels) also helps provide the tree tower with water and supplies data on the environment.

Photograph from secretldn.com

Do you like to ride a bicycle? What if you could ride a bike ON a lake, river or ocean? A company in New Zealand has created a hydrofoil electric bike that can reach speeds of 12 mph as you cycle on water. Instead of wheels the Hydrofoiler XE-1 has hydrofoils (winglike blades). As you pedal, a propeller lifts you out of the water and allows you to ride on the water. As with all new inventions, the bike that rides on water isn't cheap, selling for about $6000. The company thinks their new addition to cycling may eventually make its way into the Olympics. Photograph from dailymail

Do you wear sun screen to protect your skin from the sun? The island of Palau, in the Pacific Ocean, is the first country to ban the use of sun screen lotions using chemicals including oxybenzone and octinoxate. The ban on such sun screen lotions went into effect this week. Sun screen with such chemicals has been found to be harmful to the coral reefs and marine life. The state of Hawaii has also decided to ban such lotions(in 2021). Do you think this law will be hard to enforce?

Photograph from BBCnews

Archaeologists in China has found 220 additional terra-cotta soldiers in the tomb of Emperor Qin Shi Huang. The life size statues, all with different facial features and originally painted in vivid colors, were originally found in 1974 by farmers digging a new well. In addition to the additional clay soldiers, a golden camel was also unearthed. Thus, far, over 8000 terra cotta soldiers have been found, hundreds of life size horses and chariots, too. The actual resting place of the emperor has not yet be unearthed. Photographs from Dailymail