Treating peanut allergy bit by bit
Cleaning Up Fish Farms
Fast-flying fungal spores
Salamanders and Newts
Poison Dart Frogs
Staying Away from Sick Lobsters
Sleep Affects a Bird's Singing
Vampire Bats on the Run
Nice Chimps
Reading Body Language
Baby Talk
Chemistry and Materials
Getting the dirt on carbon
The Buzz about Caffeine
Smelly Traps for Lampreys
The solar system's biggest junkyard
Getting in Touch with Touch
New twists for phantom limbs
Dinosaurs and Fossils
The man who rocked biology to its core
Ferocious Growth Spurts
Mini T. rex
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Life under Ice
Watering the Air
Quick Quake Alerts
Missing Tigers in India
Bald Eagles Forever
A Change in Climate
Finding the Past
Writing on eggshells
Little People Cause Big Surprise
Of Lice and Old Clothes
Pygmy Sharks
White Tip Sharks
Food and Nutrition
Chocolate Rules
Chew for Health
Strong Bones for Life
GSAT English Rules
Adjectives and Adverbs
Capitalization Rules
GSAT Exam Preparation Jamaica
How are students placed after passing the GSAT exam
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
GSAT Exam Preparation
GSAT Scholarship
GSAT Mathematics
How to Slice a Cake Fairly
42,000 students will sit for the GSAT Exam in two weeks
Math of the World
Human Body
The tell-tale bacteria
Gut Microbes and Weight
Flu Patrol
Gray Whale
How children learn
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
Speedy stars
IceCube Science
The Pressure of Scuba Diving
Tracking the Sun Improves Plant Pollen
Fast-flying fungal spores
When Fungi and Algae Marry
Space and Astronomy
A Great Ball of Fire
Mercury's magnetic twisters
Planets on the Edge
Technology and Engineering
Are Propellers Fin-ished?
Reach for the Sky
Dancing with Robots
The Parts of Speech
What is a Noun
What is a Verb?
Adjectives and Adverbs
Tinkering With the Basic Bike
Flying the Hyper Skies
Troubles with Hubble
A Dire Shortage of Water
The Best Defense Is a Good Snow Fence
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™