SapQuest

African trees in the dusk

Pop quiz: How many trees are there in West Africa? This is Sandra Tsing Loh with the Loh Down on Science. Martin Brandt from University of Copenhagen wondered. So with the aid of NASA and an international team, he built a computer program to count trees — using machine learning!

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Planting Secrets

Trees in a forest

Plants and climate change: a love-hate relationship! This is Sandra Tsing Loh with the Loh Down on Science. Carbon dioxide, or CO2, is a major contributor to climate change. But it’s also a plant food source. When the sun shines, plants turn CO2 into food! So, back when there were

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Baby Spider Boom

A handful of baby spiders crawling on a web

  Stop and smell the…SPIDERS?! This is Sandra Tsing Loh with the Loh Down on Science. Sunny spring days mean it’s mating season in the Arctic! BUT these warm days are arriving earlier each year. What does this mean for creepy-crawling wolf spider moms-to-be? Ask Toke Høye and colleagues from

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Rice Cooker

Rice is delicious! But no longer nutritious? This is Sandra Tsing Loh with the Loh Down on Science. Climate change can really bring the heat! But, ocean levels aren’t the only thing on the rise. Carbon dioxide levels are also increasing. How does this change in the atmosphere affect our

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Heat Waves

Thermostat in the outdoors during summer

Is it just me, or is it warm in here?!? ? This is Sandra Tsing Loh with the Loh Down on Science. Temperatures are heating up! According to NASA, the Earth’s global temperature has warmed two degrees since the eighteen eighties. BUT, what does two degrees REALLY mean? Global temperature

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Thor: Rok-star

All hail the mighty Viking….climatologists?! This is Sandra Tsing Loh with the Loh Down on Science. You’re a Viking from the ninth century. NO BEER?! NO FOOD?! Is the world ENDING?! Twelve hundred years ago, Vikings carved a message on a rock– the Rok Runestone. Previously, researchers thought the Rok

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The Terrible Tribbles

What IS the trouble with tribbles? This is Sandra Tsing Loh with the Loh Down on Science. Tribbles — they multiply so fast that Captain Kirk was buried in them! But what’s worse? E. coli, responsible for food poisoning. It doubles every twenty minutes! One E. coli quickly becomes a

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Sleigh Bells and Seaweed

Christmas came and went – and so did the cookies you left for Santa! But what do reindeer eat off season? This is Sandra Tsing Loh with the Loh Down on Science. Climate change in the far north freezes Rudolph’s favorite plants. It also melts sea-ice bridges, preventing reindeer from

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Let It Snow

Why bring coals to Newcastle…or snow to Antarctica? This is Sandra Tsing Loh with the Loh Down on Science. As the earth warms due to climate change, the West Antarctic Ice Sheet is melting into the ocean. This rise in global sea level poses catastrophic threats to coastal cities world-wide.

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Marine Mucus Shelter

Hate cleaning house? Here’s a fun new solution! This is Sandra Tsing Loh with the Loh Down on Science. Larvaceans are ocean creatures that resemble tadpoles. Every day they build a three-foot long mucus shelter that also traps food. To eat, the larvacean pumps and filters seawater through this gooey

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