Agriculture
Seeds of the Future
New Gene Fights Potato Blight
Making the most of a meal
Amphibians
Tree Frogs
Salamanders and Newts
Poison Dart Frogs
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Fishing for Giant Squid
Lucky Survival for Black Cats
The Secret Lives of Grizzlies
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Babies Prove Sound Learners
Homework blues
Baby Number Whizzes
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Chemistry and Materials
Butterfly Wings and Waterproof Coats
Sugary Survival Skill
Boosting Fuel Cells
Computers
Graphene's superstrength
Supersonic Splash
A Light Delay
Dinosaurs and Fossils
Downsized Dinosaurs
Winged Insects May Go Way Back
A Big, Weird Dino
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Earth
Slower Growth, Greater Warmth
Farms sprout in cities
Earth from the inside out
Environment
Sounds and Silence
Forests as a Tsunami Shield
The Best Defense Is a Good Snow Fence
Finding the Past
Fakes in the museum
Digging Up Stone Age Art
Salt and Early Civilization
Fish
Piranha
Electric Catfish
Trout
Food and Nutrition
Moving Good Fats from Fish to Mice
Sponges' secret weapon
A Pepper Part that Burns Fat
GSAT English Rules
Who vs. That vs. Which
Subject and Verb Agreement
Finding Subjects and Verbs
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Preparing for the GSAT Exam
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2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
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GSAT Mathematics
Math of the World
It's a Math World for Animals
Setting a Prime Number Record
Human Body
A Better Flu Shot
Attacking Asthma
Hear, Hear
Invertebrates
Wasps
Scorpions
Lobsters
Mammals
Cows
Bobcats
Glider
Parents
Children and Media
The Surprising Meaning and Benefits of Nursery Rhymes
How children learn
Physics
The Mirror Universe of Antimatter
Project Music
Hold on to your stars, ladies and gentlemen
Plants
A Change in Leaf Color
Flower family knows its roots
White fuzzy mold not as friendly as it looks
Reptiles
Rattlesnakes
Anacondas
Crocodiles
Space and Astronomy
Sounds of Titan
Super Star Cluster in the Neighborhood
Asteroid Lost and Found
Technology and Engineering
Are Propellers Fin-ished?
A Clean Getaway
Spinach Power for Solar Cells
The Parts of Speech
Problems with Prepositions
What is a Preposition?
What is a Noun
Transportation
Reach for the Sky
Seen on the Science Fair Scene
Robots on a Rocky Road
Weather
Arctic Melt
The solar system's biggest junkyard
A Change in Climate
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Hot Summers, Wild Fires

A wood fire can be handy when you're camping. You can roast marshmallows or stay warm, for example. Forest fires that rage out of control, however, are a big problem. Wildfires cause hundreds of millions of dollars in damage every year. And the amount of destruction has grown over the last 2 decades, especially in the western United StatesTo understand better why the northern Rocky Mountains region has been hit especially hard by wildfires, scientists from the University of Arizona in Tucson looked at weather, snow, and fire records from 1970 to 2003. Their study showed that, between 1987 and 2003, fires burned an area 6.5 times larger than the area burned between 1970 and 1986. The fire season also started earlier, and its average length increased by 78 days. Warmer spring and summer temperatures appear to be part of the explanation for this change. The average temperature in the study's more recent period was 0.87C higher than it was in the earlier period. And this trend is likely to continue. Experts predict that average summer temperatures may rise between 2C and 5C by the year 2050 in western North America. The timing of snowmelt appears to be another cause of the fire boom. When snow melts early in the season, forests become drier through the summer and catch fire and burn more easily. Western snow packs now typically melt a week to a month earlier than they did 50 years ago, according to recent studies. Some people have blamed the growing fire risk on policies that allow brush and branches to build up on forest floors. But clearing brush by itself won't help much if changes in climate are largely responsible for increasingly severe forest fires.E. Sohn

Hot Summers, Wild Fires
Hot Summers, Wild Fires








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