🌴 International Day of the Tropics – 29th June Tropics • Biodiversity • Climate • Sustainable Development International Day of the Tropics , observed annually on 29th June , highlights the unique challenges and opportunities faced by tropical regions. The tropics are home to diverse ecosystems, rich biodiversity, and millions of people whose livelihoods depend on these environments. 🌍 Importance of the Tropics Host a large portion of global biodiversity Support vital ecosystems like rainforests and coral reefs Provide resources and livelihoods Play a crucial role in climate regulation Contribute to global cultural diversity The tropics are essential to global balance. ⚠️ Challenges Faced Climate change impacts Deforestation and habitat loss Economic inequality Urbanization pressures Natural disasters Sustainable development is key for tropical regions. 🌱 Path Forward Promote sustainable resource management Protect biodiversit...
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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