Environmental Challenges and Successes

5 images of cumulus clouds that are white, puffy clouds with a flat base at mid level and are often associated with fair weather

10 images of some snowflake crystals and some winter scenes with snow

5 images of stratus clouds that cover a wide horizontal layer in the sky at low level and are often associated with rain or drizzle

Can carbon offsets help you reduce your environmental footprint, practice sustainable living and fight climate change?

This backgrounder explains what greenhouse gases are and how they contribute to climate change.

Water is a precious natural resource. What happens if it gets polluted? Learn how water can be cleaned with this hands-on activity?

Learn about the chemical reaction that happens between acid rain and limestone.

Biofuels like ethanol might help fight climate change. But they can contribute to food insecurity and greenhouse gases in ways that might surprise you.

15 images of various instruments such as rain gauges, wind vanes and weather satellites used to inform us about the weather

What are microplastics? How are plastics polluting aquatic ecosystems?

5 images of cirrus clouds that are wispy or feather-like clouds at high level, made of ice crystals and may indicate an approaching storm

11 images that illustrate some daily weather conditions such as cold, hot and windy

One-third of all food produced is wasted. Learn about the environmental consequences of food waste, and what you can do about it.

Learn the organic chemistry behind this very useful plastic. Why is recycling polystyrene hard? Why does polystyrene often end up as solid waste?

How will arctic ice melt from climate change affect exploration, scientific research and geopolitics?