Learning

Learn more about nature with these free educational resources, articles and factsheets.

Facts about nature

How much do you know about nature? Get the facts about some of the world’s critical ecosystems and the vibrant species they support.

Unusual trees of the world

What’s the tallest tree on Earth? The oldest? The strangest-shaped? Learn more about our planet’s unique and breathtaking flora.

Shark facts

These mysterious, magnificent apex predators help maintain balance in marine ecosystems — and in many places, help boost local economies.

Shark identification quiz

From great whites to tigers, there are more than 500 species of sharks in the world. How many can you name?

Earth Day quiz

How well do you know your environmental facts? Test your knowledge with our Earth Day quiz and challenge your friends.

Axolotl facts

From TikTok to Minecraft, axolotls — friendly-looking salamanders with frilly gills — have become internet icons. But in the wild, axolotls are dangerously close to disappearing.

Mangroves facts

Mangrove forests cover a tiny fraction of the planet’s surface, but they provide so much for so many people. Now, coastal development, unsustainable aquaculture and sea-level rise pose unprecedented threats to these fragile ecosystems.

Amazonia facts

The Amazon Rainforest is the largest tropical forest in the world, spanning nine countries and providing a home to more than 30 million people. It helps sustain life all around the world.

What is biodiversity?

Biodiversity underpins the health of the planet — and the well-being of every person on it. Yet many people aren’t quite sure what biodiversity means, or why it matters. Here’s a clear, straightforward guide.

Endangered species quiz

More than 40,000 species currently face extinction — and habitat destruction is one of the leading causes of species loss. How much do you know about where endangered species live?

Animal quiz: Pair up or play the field?

For some species, monogamy doesn’t come naturally. Which animals mate for life? Which ones prefer multiple partners?

Wildlife conservation and ecosystem protection

People depend on nature — for food, prosperity and protection from the effects of climate change. Learn more about the threats faced by some of the world's most biodiverse ecosystems and the efforts underway to protect them.

Climate change and carbon footprint

People, companies, and industries all leave carbon footprints. Your personal footprint encompasses the planet-warming emissions created by your travel, your diet, your purchases and more. The larger your footprint, the heavier the strain on our climate.

Climate change facts

The climate crisis has arrived — and nature can provide at least 30 percent of the emissions reductions required to prevent runaway global warming.

Sustainable living tips

For those who care about nature, living your values shows up in daily choices — what you eat, how you travel, where you invest, what you support. Here are some tips to help you get started.

What is a carbon footprint?

The choices we make in our day-to-day lives — from what we cook to how we travel — can leave a lasting mark on the environment.

Carbon footprint quiz

Small tweaks to your daily routine can make a big impact in the fight against climate change. Take this quiz to find out how you can reduce your carbon footprint.

What are carbon credits?

Conservation International helps ensure that forests are worth more alive than dead — and properly valued for removing vast quantities of carbon from the atmosphere.

Why are carbon projects important?

Carbon projects help build thriving economies around conservation, financially rewarding local people for good environmental stewardship.

IPCC reports on climate change

The IPCC is the world’s top authority on climate science. Its reports explain how our climate is changing, how humanity can adapt, and how we can prevent further damage.

Quizzes about nature

From rainforests to reef fish, test your environmental IQ with one of our nature quizzes.