This document discusses sustainable engineering and the environment. It begins by defining sustainability and outlining the UN's 17 sustainable development goals. Some of the major challenges for engineers in achieving sustainability are depletion of resources, waste management, land degradation, and climate change. Environmental impacts from human activities can include various forms of pollution, loss of habitat, and increased greenhouse gases. The document then discusses practices to achieve sustainability, such as renewable energy and green technologies. Industries can impact the environment through resource extraction, land and water use, and waste generation. Air and water pollution are also discussed. The overall document provides an overview of concepts in sustainable engineering and environmental challenges.