Agriculture
Keeping Bugs Away from Food
Vitamin D-licious Mushrooms
Hungry bug seeks hot meal
Amphibians
Tree Frogs
Frogs and Toads
Salamanders
Animals
A Jellyfish's Blurry View
Sleepless at Sea
Navigating by the Light of the Moon
Behavior
Seeing red means danger ahead
Storing Memories before Bedtime
Homework blues
Birds
Hummingbirds
Waterfowl
Swans
Chemistry and Materials
Screaming for Ice Cream
Scientist Profile: Wally Gilbert
The newest superheavy in town
Computers
The Shape of the Internet
Getting in Touch with Touch
Small but WISE
Dinosaurs and Fossils
Big Fish in Ancient Waters
A Living Fossil
Feathered Fossils
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Recipe for a Hurricane
Vitamin D-licious Mushrooms
Coral Islands Survive a Tsunami
Environment
What is groundwater
Sea Otters, Kelp, and Killer Whales
Groundwater and the Water Cycle
Finding the Past
Stone Tablet May Solve Maya Mystery
Your inner Neandertal
Prehistoric Trips to the Dentist
Fish
Halibut
Sturgeons
Lampreys
Food and Nutrition
Turning to Sweets, Fats to Calm the Brain
Symbols from the Stone Age
Packing Fat
GSAT English Rules
Adjectives and Adverbs
Who vs. Whom
Problems with Prepositions
GSAT Exam Preparation Jamaica
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
GSAT Scholarship
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
Deep-space dancers
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
A Sweet Advance in Candy Packing
Human Body
Heart Revival
Sleeping Soundly for a Longer Life
A Fix for Injured Knees
Invertebrates
Starfish
Invertebrates
Scallops
Mammals
Sphinxes
Wombats
Beavers
Parents
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
The Pressure of Scuba Diving
Hold on to your stars, ladies and gentlemen
Extra Strings for New Sounds
Plants
Plants Travel Wind Highways
Flower family knows its roots
Hungry bug seeks hot meal
Reptiles
Gila Monsters
Tortoises
Geckos
Space and Astronomy
An Earthlike Planet
A Great Ball of Fire
Slip-sliding away
Technology and Engineering
Are Propellers Fin-ished?
Shape Shifting
A Clean Getaway
The Parts of Speech
What is a Verb?
Pronouns
What is a Preposition?
Transportation
Robots on the Road, Again
Where rivers run uphill
Middle school science adventures
Weather
The Best Defense Is a Good Snow Fence
Warmest Year on Record
Watering the Air
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™