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Browsing Category
Forest & environment
How Scientists Know Whether a River Is Healthy
A river can look clean and still be unhealthy. Scientists assess river health by measuring dissolved oxygen, pH, turbidity, nutrients and other water-quality indicators, while also studying aquatic organisms and river habitats. Because…
Where Does Rainwater Go After It Hits a City?
When rain falls on a city, much of its journey is determined by roads, roofs, pavements, drains and the remaining areas of soil and vegetation. Impervious surfaces reduce infiltration and speed up runoff, while stormwater can collect…
The Sand Dunes That Protect Odisha’s Coast
Odisha’s sand dunes are more than piles of sand along the beach. Formed through the interaction of wind, sediment and vegetation, they act as natural physical barriers, provide habitat for specialised coastal species and, in some areas,…
When the Ground Heats Up: The Environmental Consequences We Cannot See
The ground beneath us is heating in ways that ordinary air-temperature measurements cannot fully capture. Land surface temperature reveals how vegetation loss, urbanisation, dry soils and changing land cover alter the exchange of heat and…
Who Is Polluting the Yamuna?
The Yamuna does not follow state borders, and neither does its pollution. Wastewater from different cities, industrial discharge, drainage networks and tributaries contributes to pollution along different stretches of the river. While Delhi…
How Wild Animals Raise Their Young: The Science of Survival
Wild animals have evolved remarkably different ways of raising their young. Some provide food and protection for months or years, while others leave offspring largely independent soon after birth or hatching. From nest building and…
Forest Waterholes: The Hidden Lifelines of Wildlife
A small waterhole can become one of the most important places in a forest when the dry season arrives. Water availability influences wildlife movement, habitat use and interactions between species, while concentrated animal activity can…
Beyond the Cyclone Name: How Arnab Hit Odisha
Odisha is facing another spell of intense weather as a deep depression over the Bay of Bengal moves inland after crossing near the north Andhra Pradesh–south Odisha coast. Although the system did not intensify into a cyclonic storm, it has…
Why Environmental Laws Need Public Participation
Environmental laws affect real communities, landscapes and livelihoods, so the people living closest to a proposed project need a meaningful opportunity to participate in environmental decision-making. Public hearings and access to…
Why Cities Need Wetlands More Than They Realise
Urban wetlands are more than patches of water waiting for development. They can temporarily store stormwater, slow runoff, help retain pollutants and sediments, provide habitat for wildlife and influence local temperatures through water and…