Agriculture
Earth-Friendly Fabrics
Flush-Free Fertilizer
Hungry bug seeks hot meal
Amphibians
Frogs and Toads
Poison Dart Frogs
Tree Frogs
Animals
A Jellyfish's Blurry View
Lucky Survival for Black Cats
Who's Knocking?
Behavior
Ear pain, weight gain
Internet Generation
The case of the headless ant
Birds
Ospreys
Blue Jays
Turkeys
Chemistry and Materials
Big Machine Reveals Small Worlds
A Butterfly's Electric Glow
Salt secrets
Computers
Hitting the redo button on evolution
The science of disappearing
Small but WISE
Dinosaurs and Fossils
Fingerprinting Fossils
Winged Insects May Go Way Back
Dinosaur Eggs-citement
E Learning Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
The Rise of Yellowstone
Warmest Year on Record
Killer Space Rock Snuffed Out Ancient Life
Environment
Snow Traps
A Change in Leaf Color
Giant snakes invading North America
Finding the Past
Untangling Human Origins
Salt and Early Civilization
Writing on eggshells
Fish
Megamouth Sharks
Skates
Saltwater Fish
Food and Nutrition
Yummy bugs
A Pepper Part that Burns Fat
Healing Honey
GSAT English Rules
Order of Adjectives
Whoever vs. Whomever
Capitalization Rules
GSAT Exam Preparation Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
GSAT Scholarship
GSAT Mathematics
Losing with Heads or Tails
How a Venus Flytrap Snaps Shut
Deep-space dancers
Human Body
Disease Detectives
Electricity's Spark of Life
Cell Phones and Possible Health Hazards
Invertebrates
Ants
Shrimps
Crawfish
Mammals
A Grim Future for Some Killer Whales
African Jackal
Spectacled Bear
Parents
The Surprising Meaning and Benefits of Nursery Rhymes
Expert report highlights the importance to parents of reading to children!
Raise a Lifelong Reader by Reading Aloud
Physics
Gaining a Swift Lift
The Particle Zoo
Invisibility Ring
Plants
Getting the dirt on carbon
Fungus Hunt
Tracking the Sun Improves Plant Pollen
Reptiles
Asp
Tortoises
Crocodilians
Space and Astronomy
An Earthlike Planet
Galaxies Divide Sharply Along Color Lines
A Whole Lot of Nothing
Technology and Engineering
Space Umbrellas to Shield Earth
A Micro-Dose of Your Own Medicine
Beyond Bar Codes
The Parts of Speech
Countable and Uncountable Nouns
What is a Noun
What is a Verb?
Transportation
Charged cars that would charge
How to Fly Like a Bat
Reach for the Sky
Weather
Antarctica warms, which threatens penguins
Polar Ice Feels the Heat
Science loses out when ice caps melt
Add your Article

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








Designed and Powered by HBJamaica.com™