Rainforests have been around for millions of years—they're the Earth's oldest living ecosystems—but they may not be around for much longer. When natural resources are removed from the rainforest, companies often destroy or damage the water, soil, plants, and animals there. At the present rate of destruction, all the earth's rainforests will be gone in 30 years. And once the rainforest is destroyed, it doesn't come back. 137 species of plants and animals become extinct every day in rainforests around the world. But there are ways that you can help, by being an Amazon activist!