This document discusses Earth Day and environmental facts. It contains the following key points: 1) The Earth Day flag shows a NASA image of Earth over a blue background and is a popular unofficial representation of Earth Day. 2) Recycling 1 ton of plastic saves 750 kg of oil and in 2025 two-thirds of the world's population will suffer from lack of water unless action is taken. 3) 181 countries have ratified the Kyoto Protocol to reduce greenhouse gases, but the US has not signed it. Plastic waste kills millions of animals each year. Planting trees reduces pollution and CO2 storage.