Agriculture
Cleaning Up Fish Farms
Fast-flying fungal spores
Making the most of a meal
Amphibians
Newts
Tree Frogs
Frogs and Toads
Animals
Killer Flatworms Hunt with Poison
Copybees
Fishy Cleaners
Behavior
The Disappearing Newspaper
Listen and Learn
Monkeys in the Mirror
Birds
Waterfowl
Finches
Kookaburras
Chemistry and Materials
The memory of a material
Popping to Perfection
Moon Crash, Splash
Computers
Troubles with Hubble
Batteries built by Viruses
The Shape of the Internet
Dinosaurs and Fossils
South America's sticky tar pits
Meet your mysterious relative
Battling Mastodons
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Greener Diet
In Antarctica watch the heat (and your step)
Detecting an Eerie Sea Glow
Environment
Out in the Cold
Shrinking Fish
Eating Up Foul Sewage Smells
Finding the Past
An Ancient Childhood
Preserving Ancient Warrior Paint
The Puzzle of Ancient Mariners
Fish
Puffer Fish
Freshwater Fish
Salmon
Food and Nutrition
A Pepper Part that Burns Fat
Chocolate Rules
Chew for Health
GSAT English Rules
Order of Adjectives
Subject and Verb Agreement
Problems with Prepositions
GSAT Exam Preparation Jamaica
Ministry of Education Announces 82 GSAT Scholarships for 2010
Preparing for the GSAT Exam
GSAT stars reap scholarship glory
GSAT Exams Jamaica Scholarships
42,000 students will sit for the GSAT Exam in two weeks
2014 GSAT Results for Jamaican Kids
GSAT Exam Preparation
GSAT Mathematics
Math and our number sense: PassGSAT.com
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Math of the World
Human Body
A New Touch
What the appendix is good for
Heavy Sleep
Invertebrates
Wasps
Flies
Cockroaches
Mammals
Coyotes
Wolverines
Dingoes
Parents
The Surprising Meaning and Benefits of Nursery Rhymes
How children learn
Raise a Lifelong Reader by Reading Aloud
Physics
Thinner Air, Less Splatter
Dreams of Floating in Space
Gaining a Swift Lift
Plants
Fast-flying fungal spores
Fungus Hunt
Farms sprout in cities
Reptiles
Lizards
Black Mamba
Asp
Space and Astronomy
Catching a Comet's Tail
Roving the Red Planet
A Whole Lot of Nothing
Technology and Engineering
Crime Lab
Morphing a Wing to Save Fuel
Riding Sunlight
The Parts of Speech
What is a Preposition?
Problems with Prepositions
Countable and Uncountable Nouns
Transportation
Middle school science adventures
Troubles with Hubble
Where rivers run uphill
Weather
Antarctica warms, which threatens penguins
Catching Some Rays
The Best Defense Is a Good Snow Fence
Add your Article

Pumping Up Poison Ivy

It itches and oozes. With its red bumps, a poison ivy rash can make you miserable. The potential for misery might get even worse. A new study suggests that rising levels of the gas carbon dioxide in the atmosphere could make poison ivy grow faster and become more toxic. "Rising carbon dioxide can favor pests and weeds, those plants we'd least like to see succeed," says climate-change ecologist Bruce Hungate of Northern Arizona University in Flagstaff. Large doses of carbon dioxide (CO2) get into the air when people burn coal, oil, natural gas, and other fossil fuels. Carbon dioxide is a greenhouse gas. As it accumulates, the atmosphere traps more heat, and Earth's climate warms up. Plants need CO2 to grow. To test whether extra CO2 in the environment leads to extra plant growth, scientists have set up circles of pipes as high as treetops around the world. These pipes spit out either regular air or extra CO2 over a patch of ground. As a result, researchers can compare how plants respond to different atmospheric conditions. For 6 years, scientists monitored plants that grew near some of these pipes in a Duke University pine forest. They found that, with about 50 percent more CO2 around, poison ivy plants were able to make more food and use water with greater efficiency. Poison ivy plants that got the CO2 boost produced the same amount of toxic oil, called urushiol, as regular air-bathed plants. With extra CO2, however, more of the urushiol was in a particularly toxic form and more likely to cause rashes. Poison ivy's success in the presence of extra CO2 is just one example of how climate change might alter the dynamics of forest ecosystems, scientists say. With more poison ivy around, it might also become harder to enjoy being in the woods. Lead researcher Jacqueline E. Mohan, for example, had never developed a rash from poison ivy before she started the study. "I get it now," she says.E. Sohn

Pumping Up Poison Ivy
Pumping Up Poison Ivy








Designed and Powered by HBJamaica.com™