The environment has significantly improved in many ways, since 1970. In particular air quality and sanitation in urban areas is eons ahead of 1970s, not to mention the Gilded Age when most of the world lacked safety codes and almost any type of environmental regulations. Moreover, within United States, household energy consumption is
actually going down. You can see the data, and the explanation for this phenomena on theis
Energy Information Administration page. The TL;DR is that energy efficiency has improved significantly. This is from mundane things like, LED lightbulbs vs traditional incandescent ones, as well as government investments into more efficient power grids, better air conditioning systems, and consumer adoption of renewable energy.
Sure, many parts of the world are getting destroyed, due to rapid industrialization, but this is an unavoidable cycle. Even before the 21st century, the Clean Air Act significantly cleaned up pollution in urban areas in United States. So as developing countries industrialize, they will also likely clamp down on pollution. For all the grief countries like China get, they have made significant strides in
reducing pollution.