Sustainable engineering aims to design and develop technologies and systems that minimize their environmental impact and promote resource conservation.

Planned obsolescence is the practice of designing products with a limited lifespan to encourage consumers to buy new ones, which goes against the principles of green technology.

Green building, sustainable architecture, and eco-friendly construction all refer to the practice of designing and constructing buildings with a focus on minimizing their environmental impact.

Natural gas is a fossil fuel and is not considered a renewable energy source.

Recycling, upcycling, and composting are all processes that involve converting waste materials into usable products or energy.

While sustainable engineering practices can lead to reduced environmental impact, increased energy efficiency, and improved brand image, they may not necessarily result in lower production costs.

Design for disassembly is the practice of designing products and systems to be easily disassembled and recycled at the end of their lifespan.

Oxygen is not a greenhouse gas, as it does not trap heat in the atmosphere.

Life cycle assessment, environmental impact assessment, and sustainability assessment all involve evaluating the environmental impact of a product or service throughout its entire lifecycle.

Sports cars are not considered sustainable transportation options due to their high fuel consumption and emissions.

Bioremediation, phytoremediation, and mycoremediation all involve using microorganisms to break down and remove pollutants from the environment.

Nuclear power plants are not considered sustainable energy technologies due to the production of radioactive waste and the risk of accidents.

Sustainable urban planning, green urbanism, and eco-city planning all involve designing and constructing cities to be more sustainable and environmentally friendly.

Monoculture farming, where a single crop is grown on a large area of land, is not considered a sustainable agricultural practice due to its negative impact on soil health and biodiversity.

Passive house design, net-zero energy building, and green building all involve designing and constructing buildings to be energy-efficient and environmentally friendly.