Amid scorching temperatures and escalating wildfires in Europe, the connection between climate change and intensifying heatwaves has gained attention. Greenhouse gas emissions have raised global temperatures by 1.2°C since pre-industrial times.
Addressing this, initiatives like Spain’s “Greenshades” aim to mitigate urban heat by installing tensioned sail-like vegetated canopies. These mimic forest canopies, providing shade and greenery in commercial streets where traditional vegetation is challenging. Watered and fertilized, the canopy supports hydroponic plant growth, contributing to cooling via evapotranspiration, absorbing harmful gases, and reducing noise.
Advantages include oxygen production, gas absorption, and savings through integrated lighting and water systems. Ultimately, this approach fosters urban biodiversity, enhancing ecosystem health and supporting wildlife.
What to study for prelims?
- Tensioned Sail-Like Structures: These are lightweight, sail-shaped structures that are anchored to buildings, creating shaded areas. They are designed to mimic natural canopies found in forests.
- Evapotranspiration: Evapotranspiration is the combined process of water evaporation from the surface of plants and the release of water vapor from plant leaves into the atmosphere. It contributes to cooling in the environment.
- Hydroponic Plant Growth: Hydroponics is a method of growing plants without soil, using nutrient-rich water. It allows for controlled plant growth and can be employed in urban spaces with limited soil availability.
- Urban Biodiversity: Urban biodiversity refers to the variety of plant and animal species present in urban environments. It’s essential for creating balanced ecosystems and supporting wildlife populations in cities.
- Integrated Lighting and Water Systems: Integrated systems combine lighting and water installations for efficiency and sustainability. Movement sensors for lighting adjust illumination based on need, promoting energy savings.
