Agriculture
Making the most of a meal
Flush-Free Fertilizer
Getting the dirt on carbon
Amphibians
Bullfrogs
Poison Dart Frogs
Salamanders and Newts
Animals
Insect Stowaways
A Butterfly's New Green Glow
Moss Echoes of Hunting
Behavior
Night of the living ants
Body clocks
Between a rock and a wet place
Birds
Parakeets
Kiwis
Storks
Chemistry and Materials
Sweeeet! The Skinny on Sugar Substitutes
Small but WISE
Revving Up Green Machines
Computers
Graphene's superstrength
Toxic Dirt + Avian Flu = Science Fair Success
Play for Science
Dinosaurs and Fossils
Fossil Forests
A Rainforest Trapped in Amber
Mini T. rex
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
Snowflakes and Avalanches
Life under Ice
Ice Age Melting and Rising Seas
Environment
A Stormy History
Little Bits of Trouble
Island Extinctions
Finding the Past
Unearthing Ancient Astronomy
Preserving Ancient Warrior Paint
Of Lice and Old Clothes
Fish
Hammerhead Sharks
Hagfish
Eels
Food and Nutrition
Chew for Health
Moving Good Fats from Fish to Mice
A Pepper Part that Burns Fat
GSAT English Rules
Pronouns
Order of Adjectives
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
GSAT Exam Preparation
The Annual GSAT Scholarships
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT Scholarship
Access denied - Disabled boy aces GSAT
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Mathematics
10 Common Mistakes When Preparing for the GSAT Math Test
Detecting True Art
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Human Body
Surviving Olympic Heat
Heavy Sleep
What the appendix is good for
Invertebrates
Ants
Cockroaches
Octopuses
Mammals
African Ostrich
Antelope
Bumblebee Bats
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
Einstein's Skateboard
Road Bumps
Extra Strings for New Sounds
Plants
Fast-flying fungal spores
Bright Blooms That Glow
Sweet, Sticky Science
Reptiles
Komodo Dragons
Crocodiles
Box Turtles
Space and Astronomy
Big Galaxy Swallows Little Galaxy
Supernovas Shed Light on Dark Energy
Black Holes That Burp
Technology and Engineering
Switchable Lenses Improve Vision
Are Propellers Fin-ished?
Riding Sunlight
The Parts of Speech
What is a Noun
What is a Preposition?
What is a Verb?
Transportation
Robots on the Road, Again
Seen on the Science Fair Scene
Morphing a Wing to Save Fuel
Weather
Earth's Poles in Peril
The Best Defense Is a Good Snow Fence
Where rivers run uphill
Add your Article

Greener Diet

Think about what you had for lunch: Was it a hamburger? A chicken sandwich? Barbecue? What about vegetables? Would it surprise you to learn that what you eat can affect the whole planet? It can — in a big way. Last week, scientists attending the American Association for the Advancement of Science meeting in Chicago presented new studies showing how food and its production affect the globe and its warming climate. The researchers had some bad news for meat-eaters (which is good news for cows!). They also offered some suggestions for how to eat in a more environmentally friendly way. You’ve probably heard of global warming: For many years, scientists have warned that our planet is getting warmer. If current trends continue, then animals may start to die off and life could get very difficult for everyone. The temperature is on the rise because for more than a century, human kind has been releasing massive amounts of gases into the atmosphere, called “greenhouse gases.” These gases surround the planet and keep heat from escaping the atmosphere. You can think of them as a blanket for the Earth that traps heat. One of these greenhouse gases is carbon dioxide. What does this have to do with food? A big chunk of the carbon dioxide that we put in the atmosphere every year comes from the process of making and eating food, the scientists reported in Chicago. The production of meat contributes a lot of that carbon dioxide. And much of meat’s contribution comes from beef, which is responsible for releasing even more warming gases into the atmosphere. The process of making a hamburger, for example, requires a lot of energy. A cow has to be fed and raised on farmland, and cow manure is a major source of methane — an especially potent greenhouse gas. The cow has to be slaughtered. The meat has to be processed and shipped to a consumer, which takes fuel. Most of the cow won’t even be used for meat that people eat. By the time a hamburger finally lands on a dinner plate, it has taken a heavy toll on the environment. According to Ulf Sonesson of the Swedish Institute for Food and Biotechnology in Goteborg, Sweden, the process of making a one half-pound all-beef burger adds the equivalent (made up of other greenhouse gases) of about 19 times that hamburger’s weight in carbon dioxide.The message from the research is clear: We can drastically reduce the production of global-warming gases by eating less beef. (That’s healthier, too, since Americans eat twice as much beef as is advised by the U.S. Department of Agriculture.) Other kinds of meat like pork and chicken do less harm to the environment — at least in terms of the amount of greenhouse gases released. Nathan Pelletier, a scientist Dalhousie University in Canada, reported that if everyone in industrial countries (like the United States) substituted chicken for beef, we would cut meat’s contribution in these countries to the greenhouse warming of Earth’s air by more than half. All kinds of meat, the scientists reported, are harder on the planet than vegetables. To grow and eat a pound of potatoes, for example, sends less than one quarter-pound of carbon dioxide or equivalent warming gases into the air. So shifting our diet to less meat and more vegetables, as it turns out, may do the world some good.

Greener Diet
Greener Diet








Designed and Powered by HBJamaica.com™