Skyscraper Sunscreen

Chicago's skyline

Do skyscrapers need. . . sunscreen? This is Sandra Tsing Loh with the Loh Down on Science. It’s a concrete jungle out there, and a HOT one! Cooling big city skyscrapers with AC burns LOADS of energy. Could we save money and the environment by slathering buildings with sunscreen? Xiangyu

Continue reading

Erasable Plastic

Plastic waterbottle floating underwater in ocean.

Plastic ocean trash…Now you see it! Now you don’t? This is Sandra Tsing Loh with The Loh Down on Science. More than twelve million tons of plastic gets lost in the ocean every year! That’s the weight of almost SIXTY THOUSAND blue whales! Can’t we make some of that plastic

Continue reading

Pink Snow

We all know to avoid yellow snow. But what about PINK snow? This is Sandra Tsing Loh with The Loh Down On Science. Pink snow forms when the surfaces of glaciers and ice sheets melt. Red algae grow in the meltwater and color the snow beneath. Scientists from the University

Continue reading

Rainbow Roll

Chameleons and kelp – what do they have in common? This is Sandra Tsing Loh with the Loh Down on Science. Chameleons change colors to hide or to express their feelings — like living mood rings! But seaweed doesn’t change color… or does it? Meet Heather Whitney from the University

Continue reading