Before 1970, few laws protected the environment. Then on April 22 that year, Earth Day was created to celebrate our planet, tell people about environmental problems, and encourage them to take action. Now Earth Day is celebrated all around the world. We still face many challenges, such as climate（气候）change, plastic pollution, and deforestation（毁林）. But we can make a difference. Here is an Earth-helping hero.
Adeline Tiffanie Suwana was twelve when her family' s home flooded. Indonesia, her island nation in South-east Asia, is often hit hard by floods and other natural disasters.
Adeline wanted to help. Studying the problem, she learned that mangrove trees play an important role in flood protection. Their big, tangled（缠结的）roots slow floodwaters and keep soil from washing away. But the trees were being cut down.
Adeline gathered her classmates to plant 200 mangrove young trees during a school break. They started a group called Friends of Nature, which works to keep the area' s biodiversity（生物多样性）, fight against climate change, and help people realize the importance of the environment. They even started a project to get clean energy to remote villages.
Today, Adeline attends college, studying how businesses can help the environment.
Remember: every one of us can be a hero for the environment!
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