Agriculture
Protecting Cows—and People—from a Deadly Disease
Silk’s superpowers
Seeds of the Future
Amphibians
Poison Dart Frogs
Frogs and Toads
Toads
Animals
Roach Love Songs
A Whale's Amazing Tooth
Life on the Down Low
Behavior
Flower family knows its roots
A Global Warming Flap
Making light of sleep
Birds
Lovebirds
Eagles
Kiwis
Chemistry and Materials
Lighting goes digital
The hungry blob at the edge of the universe
Earth-Friendly Fabrics
Computers
Computers with Attitude
Middle school science adventures
The hungry blob at the edge of the universe
Dinosaurs and Fossils
A Really Big (but Extinct) Rodent
South America's sticky tar pits
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
Earth
Coral Islands Survive a Tsunami
The Pacific Ocean's Bald Spot
Snowflakes and Avalanches
Environment
Spotty Survival
Alien Invasions
Where rivers run uphill
Finding the Past
Childhood's Long History
Sahara Cemetery
Meet your mysterious relative
Fish
Seahorses
Electric Ray
Tilapia
Food and Nutrition
A Pepper Part that Burns Fat
Healing Honey
The Color of Health
GSAT English Rules
Who vs. Whom
Subject and Verb Agreement
Order of Adjectives
GSAT Exam Preparation Jamaica
Ministry of Education Announces 82 GSAT Scholarships for 2010
42,000 students will sit for the GSAT Exam in two weeks
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Exams Jamaica Scholarships
2014 GSAT Results for Jamaican Kids
GSAT Exam Preparation
GSAT stars reap scholarship glory
GSAT Mathematics
Losing with Heads or Tails
Math and our number sense: PassGSAT.com
Math is a real brain bender
Human Body
A Long Trek to Asia
Tapeworms and Drug Delivery
Smiles Turn Away Colds
Invertebrates
Sea Urchin
Flies
Caterpillars
Mammals
Pomeranians
Capybaras
Humans
Parents
How children learn
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
Physics
Road Bumps
Dreams of Floating in Space
Echoes of a Stretched Egg
Plants
Making the most of a meal
Plants Travel Wind Highways
When Fungi and Algae Marry
Reptiles
Caimans
Reptiles
Iguanas
Space and Astronomy
A Galaxy Far, Far, Far Away
Supernovas Shed Light on Dark Energy
Killers from Outer Space
Technology and Engineering
A Satellite of Your Own
Spinach Power for Solar Cells
Crime Lab
The Parts of Speech
What is a Preposition?
What is a Noun
Pronouns
Transportation
Are Propellers Fin-ished?
Middle school science adventures
Tinkering With the Basic Bike
Weather
Science loses out when ice caps melt
Antarctica warms, which threatens penguins
Arctic Melt
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City Trees Beat Country Trees

There are city people, and there are country people. Now, the same may be true for trees. A common type of tree grows twice as well in New York City as it does in rural places around the state, researchers report. An unexpected twist in pollution patterns appears to explain the trend. Cities may seem like an unlikely place for plant life to blossom. Car fumes, polluted water, and toxic metals in dirt are only a few of the obstacles to growth. That’s why ecologist Jillian Gregg’s results were somewhat surprising. She and her colleagues found that Eastern cottonwoods planted in the heart of New York City grew to be twice as massive as trees planted in small towns outside the city. The researchers were able to rule out genes, light conditions, rainfall, bugs, temperature, carbon dioxide levels, and soil type as causes. However, they noticed that one type of air pollution—the amount of ozone in air averaged over a 24-hour period—was actually worse in the country than in the city. Much of that ozone came from pollution blowing in from urban areas. Back in the city, though, other abundant air pollutants were clearing out the ozone by combining with it chemically and making it harmless. The study shows how much city pollution can hurt rural environments. And just like people, even trees suffer from the city’s bad breath.—E. Sohn

City Trees Beat Country Trees
City Trees Beat Country Trees








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