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i. Sustainable Development Goals:
The SDG card-picking activity is a fun and interactive way to explore how the Sustainable Development Goals (SDGs) align with various aspects of sustainability, including life cycle assessment, carbon footprint calculations, embodied energy, and proposing engineering solutions. We had got the SDG 13 which is Climate Action and here are few following points regarding it:
Climate action, a key Sustainable Development Goal (SDG), is closely linked to engineering through life cycle assessment (LCA), carbon footprint calculations, and embodied energy considerations.
Life Cycle Assessment evaluates the environmental impacts of products or processes from extraction to disposal, while carbon footprint calculations focus on greenhouse gas emissions.
Embodied energy assesses the total energy needed for a product's life cycle.
Engineering solutions for climate action involve using these tools to design sustainable products, processes, and systems, such as renewable energy technologies and energy-efficient practices.
The SDG activity has shown that engineers can play a crucial role in addressing global challenges. My chosen SDG, Climate Action (SDG 13), intersects with sustainability in engineering by promoting resource efficiency, assessing environmental impact, addressing social issues, and driving innovation in sustainable technologies. This highlights the importance of incorporating sustainability principles into engineering practices for a more sustainable and equitable world.
ii. Life Cycle Assessment
Understanding life cycle assessment (LCA) has expanded my comprehension of the environmental ramifications of products, demonstrating that it encompasses more than just the usage phase, encompassing all stages of a product's life cycle. This comprehensive perspective prompts me to integrate sustainability into every engineering decision. For instance, scrutinizing the life cycle of a smartphone unveils environmental effects from raw material extraction to disposal. Innovations like prioritizing durability in design, employing recycled materials, enhancing energy efficiency, and adopting circular economy principles can bolster sustainability. In forthcoming engineering endeavors, I will give precedence to these innovations to diminish environmental impacts across product life cycles.
iii. Carbon Footprint and Embodied Energy
3. Carbon footprint and embodied energy : Carbon footprint and embodied energy are both related to the environmental impact of a product or process, but they focus on different aspects:
1. Carbon Footprint: The carbon footprint of a product or activity measures the total amount of greenhouse gases, especially carbon dioxide, that are emitted directly or indirectly during its production, use, and disposal. It's a way to understand how much something contributes to climate change.
2. Embodied Energy: Embodied energy is the total energy that is used to produce a product or service. This includes the energy used to extract, process, transport, and assemble the materials. It's a measure of how much energy is "embedded" in a product before it is used, and it can give an idea of the environmental impact associated with energy consumption.
Embodied energy calculations are critical for selecting materials in projects, favoring those with lower energy consumption. However, implementing sustainable choices faces challenges like cost and availability. Knowledge of embodied energy can inspire design approaches favoring low-embodied-energy materials and encouraging reuse and local sourcing. Understanding the significant impact of electricity on carbon emissions from appliances can promote energy-efficient choices. Similarly, awareness of LPG and transportation carbon footprints can guide lifestyle and design decisions towards sustainability, such as using cleaner fuels and efficient transportation systems. Overall, integrating these considerations can lead to more sustainable material selections, lifestyle choices, and engineering designs.
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