💧 World Water Day – 22nd March Water • Life • Sustainability • Global Responsibility World Water Day , observed annually on 22nd March , highlights the importance of freshwater and advocates for sustainable management of water resources. Water is essential for life, yet billions of people worldwide still lack access to safe drinking water and sanitation. 🌍 Why Water Matters Supports human health and hygiene Drives agriculture and food production Enables industry and economic growth Sustains ecosystems and biodiversity Regulates climate systems Without water security, sustainable development is impossible. 🚰 Global Challenges Water scarcity and drought Pollution and contamination Climate change impacts Unequal access to sanitation Addressing these challenges requires innovation, policy reform, and community engagement. 🌱 How Individuals Can Help Reduce water waste Fix leaks promptly Avoid polluting water sources Support clean wate...
It
doesn’t! The oxygen level of the planet has varied quite dramatically in the
last 500 million years. It was 35 per cent during the Carboniferous period, around
300 million years ago; as the climate, cooled and land plants died off, oxygen
fell to as low as 12 per cent by the beginning of the Triassic. Back then, the
air at sea level would have felt thinner than at the top of the Alps today.
Burning
fossil fuels has reduced oxygen levels very slightly – about 0.057 per cent
over the last 30 years. Deforestation only has a small effect because when
rainforest is cut down, other plants are usually grown in its place. But it’s
marine phytoplankton (plant plankton), rather than trees, that produces about
75 per cent of atmospheric oxygen. Global warming will have a significant
impact on phytoplankton, which is a much more serious threat to oxygen levels.
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