Hungry bug seeks hot meal
Watering the Air
Cleaning Up Fish Farms
Tree Frogs
Firefly Delight
Insect Stowaways
Insects Take a Breather
Supersonic Splash
Between a rock and a wet place
Double take
Chemistry and Materials
Bang, Sparkle, Burst, and Boom
A Butterfly's Electric Glow
The Buzz about Caffeine
The hungry blob at the edge of the universe
Earth from the inside out
New twists for phantom limbs
Dinosaurs and Fossils
Mammals in the Shadow of Dinosaurs
Fossil Forests
A Dino King's Ancestor
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Explorer of the Extreme Deep
The Pacific Ocean's Bald Spot
Weird, new ant
Power of the Wind
Shrinking Fish
Toxic Cleanups Get a Microbe Boost
Finding the Past
Ancient Art on the Rocks
A Human Migration Fueled by Dung?
Sahara Cemetery
Freshwater Fish
Food and Nutrition
The Color of Health
Food for Life
Moving Good Fats from Fish to Mice
GSAT English Rules
Capitalization Rules
Whoever vs. Whomever
Who vs. Whom
GSAT Exam Preparation Jamaica
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
How are students placed after passing the GSAT exam
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
GSAT Scholarship
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Mathematics
How to Slice a Cake Fairly
How a Venus Flytrap Snaps Shut
Math Naturals
Human Body
Cell Phones and Possible Health Hazards
Taste Messenger
Walking to Exercise the Brain
African Ostrich
Choosing a Preschool: What to Consider
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
Project Music
One ring around them all
The Pressure of Scuba Diving
Bright Blooms That Glow
Stalking Plants by Scent
Fungus Hunt
Komodo Dragons
Space and Astronomy
Mercury's magnetic twisters
A Whole Lot of Nothing
Icy Red Planet
Technology and Engineering
Bionic Bacteria
A Light Delay
A Clean Getaway
The Parts of Speech
What is a Preposition?
What is a Verb?
Robots on the Road, Again
Middle school science adventures
Where rivers run uphill
Weekend Weather Really Is Different
Where rivers run uphill
Watering the Air
Add your Article

Arctic Algae Show Climate Change

A recent study focused on changes at high altitudes way up north from Canada to Russia. Many of the lakes were on islands in the Arctic Ocean. They were too far away from civilization for people's activities to directly influence them. These lakes freeze over in the winter. That makes the plants and animals that live in them very sensitive to changes in climate. If temperatures warm up even just a few degrees, algae have a longer growing season and so do the animals that eat the plant material. To learn more about how aquatic life has changed over the years in these remote places, scientists from Queen's University in Kingston, Ontario, took 55 samples of sediment from the bottoms of dozens of lakes. Within the samples, they counted remains of tiny creatures including water fleas, insect larvae, and algae called diatoms. The team recorded the numbers of these lake inhabitants at different depths. The deeper the sediment, the older it is. Results showed that ecosystems started to change in many of the lakes about 150 years ago. Populations of water fleas and algae-eating insect larvae increased, for example. And one type of diatom replaced another. The researchers speculate that the shift was a result of climate change. Warming kept lakes unfrozen for a longer period each year, they say. Some species thrive in those conditions. Others do worse. The new study didn't look at what is causing global warming in the first place. Instead, it illustrates that minor shifts in temperature can have major effects on life around the globe.E. Sohn

Arctic Algae Show Climate Change
Arctic Algae Show Climate Change

Designed and Powered by™