Environmental Science (Matter and Energy)

Environmental Science

1. Group #3 GEE-ES BIT ET-2A

2. Using Matter and Energy more Sustainably C ontents: High and low waste economies Shifting matter-recycling and re-use economies Application of scientific lessons sfor a more sustainable societies

3. Energy and Matter > < < > < < The environment is composed of matter and energy, from the molecules that make up a tree’s cells to the fire that burns down a forest. Understanding environmental issues requires knowledge of chemistry, which is the study of how matter and energy interact. At its most fundamental level, life is made up of matter.  Matter  is any substance that occupies space and has mass.  Energy is the ability to do work, or to create some kind of change. Energy exists in different forms. For example, electrical energy, light energy, and heat energy are all different types of energy. To appreciate the way energy flows into and out of biological systems, it is important to understand two of the physical laws that govern energy.

4. High waste economy: High and Low waste Economies Linear consumption model: Extract → Produce → Use → Dispose this means raw materials are taken from the environment, turned into products, used by consumers , and then discarded as waste, often leading to resource depletion and pollution . It contrasts with a circular economy, which aims to minimize waste by reusing and recycling materials. Low waste economy: Circular economy model: Reduce → Reuse → Recycle focuses on minimizing waste and maximizing resource efficiency Benefits: Conserves resources, reduces pollution, and promotes efficiency

5. Shifting to Matter-Recycling and Reuse Economies Why shift? By reusing and recycling materials, we lessen the need to extract virgin resources, preserving ecosystems and reducing habitat destruction. Reduces raw material extraction: Lowers energy consumption: Manufacturing products from recycled materials typically requires less energy compared to producing them from raw materials, leading to reduced carbon emissions and energy savings.

6. Lowers energy consumption: By diverting materials from landfills and reducing pollution, a circular economy helps decrease greenhouse gas emissions, lower toxic waste, and mitigate climate change effects.

7. Application of Scientific Lessons for Sustainable Societies

8. Scientific Principles for Sustainability: Conservation of matter and energy Renewable energy adoption (solar, wind, hydro) Sustainable agriculture and resource management Examples of Sustainable Applications: Biodegradable materials replacing plastics Energy-efficient technologies (LEDs, smart grids) Urban planning focused on sustainability (green buildings, public transport)

9. Biodegradable products Energy-efficient technologies

10. Conclusion The transition to sustainable resource use is essential for a better future. By implementing scientific principles, we can ensure long-term environmental and economic sustainability. It is crucial for individuals, businesses, and governments to work together and adopt sustainable practices to create a healthier planet.

11. THANK YOU