We've had a lot of questions about pollution and recycling. Here are some places you might like to try:

• Pollutants
• Air pollution and health effects
• Recycling
• Plastics and recycling
• Recycling cans

We've been asked a lot of questions about global warming, climate change, carbon credits, etc. Here are some places you might like to try:

• Green issues in simple language
• Global warming - definition
• Global warming - facts
• Deforestation
• What are carbon credits?
• Greenhouse effect
• Ozone layer