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How Much Air Pollution Comes From Cars?

auto.howstuffworks.com/air-pollution-from-cars.htm

You see it every time smoke billows from your car's exhaust pipe. There's no denying that vehicles are major contributors to air pollution.

Argentinosaurus Was Almost Half as Long as a Football Field

animals.howstuffworks.com/dinosaurs/argentinosaurus.htm

Argentinosaurus is one of the largest known dinosaurs to have ever walked the Earth, and its sheer size captures the imagination of scientists and enthusiasts alike.

Wasted Food in the U.S. Could Feed Much of Population

recipes.howstuffworks.com/all-wasted-food-in-u-s-could-feed-84-population.htm

In the US, 21 percent of landfill space is filled with food. HowStuffWorks looks at new proposals that aim to reduce food waste by 50%.

Earth's 20 Quadrillion Ants Outweigh All Wild Birds and Mammals, Combined

animals.howstuffworks.com/insects/earths-20-quadrillion-ants-news.htm

Estimating ant numbers and mass provides an important baseline from which to monitor ant populations amid worrying environmental changes.

Utahraptor: The Salty Saga of a Killer Dinosaur

animals.howstuffworks.com/dinosaurs/utahraptor.htm

Utahraptors lived around 135 million years ago in the late Cretaceous Period. So what does salt have to do with these massive dinosaurs whose fossils were first discovered in 1975?

What to Do With Old Computers: 3 Responsible Options

computer.howstuffworks.com/discarded-old-computer.htm

After years of hard work and loyalty, some computers must finally retire. But since they can't take a pension and move to Florida, where do old computers end up?

Do you need a brake puller?

auto.howstuffworks.com/auto-parts/brakes/brake-tests/do-you-need-a-brake-puller.htm

Do you need a brake puller? Visit HowStuffWorks to find out if you need a brake puller.

Big Ben Is Getting a Big Facelift

history.howstuffworks.com/european-history/big-ben.htm

The famed London clock tower Big Ben marks 160 years in silence as its historic restoration continues. HowStuffWorks talks to the clock mechanic.

Giganotosaurus vs. T. rex: Two Dinosaurs With Big Reputations

animals.howstuffworks.com/dinosaurs/giganotosaurus-vs-t-rex.htm

Dinosaurs ruled the Earth for over 160 million years, and two of the most talked-about giants are facing off in a battle of legends: Giganotosaurus vs. T rex.

How Gold Works

science.howstuffworks.com/gold.htm

We love it. We wear it glittering around our necks and sparkling at our ears, wrists and feet. We pass it down to our children and hoard it in secret stashes. Why is this precious metal so prized?

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