Technology is the source of many environmental and social problems, but it is also key to addressing environmental degradation, climate change, food scarcity, waste management and a host of other modern challenges.
For example, technologies used for treating waste help solve environmental problems, while refrigeration and air-conditioning systems that use ozone-depleting refrigerants have huge environmental impacts. How fast human society meets these and other challenges depends in large part on the pace and scale at which good technology displaces inferior technology in different global contexts.