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Science | Environmental Science | Green Science

Green Science is the application of eco-friendly thinking to scientific disciplines. Learn about global warming, pollution and other impacts on nature and the planet, plus what we can do to combat them.

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Is the amount of mercury in CFLs more dangerous than the amount in fish?

We've been warned plenty about the mercury content of fish. And most of us know our new high-efficiency CFLs also contain the shiny neurotoxin. So which source should cause us more concern?


Have we reached peak oil?

Have we reached peak oil?

The theory of peak oil is the point at which the Earth's oil supply will start to dwindle. Learn more about the basis behind the theory of peak oil. See more »

How Organic Farming Works

How Organic Farming Works

Organic farming does not use synthetic pesticides, fertilizers or synthetic hormones. Learn more about organic farming and organic farming standards. See more »

How do you clean up an oil spill?

How do you clean up an oil spill?

Oil spill clean-up is often done through containment and skimming the oil off the surface of the water. Learn about oil spill clean-up methods. See more »

Are climate skeptics right?

Are climate skeptics right?

Climate skeptics believe that climate change is a natural process, rather than the work of man. Learn about different climate skeptic arguments. See more »

How Carbon Tax Works

How Carbon Tax Works

A carbon tax is one of two market-based options that focus on lowering harmful emissions. Learn about the carbon tax and how a carbon tax can lower emissions. See more »

How Carbon Trading Works

How Carbon Trading Works

Carbon trading, sometimes called emissions trading, is a market-based tool to limit greenhouse gases. Learn about carbon trading and carbon trading schemes. See more »

How Carbon Offsets Work

How Carbon Offsets Work

Carbon offsets are a form of trade that funds projects that reduce greenhouse gas emissions. Learn about carbon offsets and carbon offset programs. See more »

How Recycling Works

How Recycling Works

Recycling involves taking something useful and turning it into something new instead of throwing it away. Learn about recycling and the many types of recycling. See more »

How Carbon Footprints Work

How Carbon Footprints Work

Carbon footprints are numbers that represent the monthly or annual CO2 output measured in tons. Learn about carbon footprints and how to reduce a carbon footprint. See more »

How China's Pollution Sniffers Work

How China's Pollution Sniffers Work

Air pollution in China has spurred the training of air pollution sniffers to detect toxic gas. Read more about air pollution detection through smell. See more »