If we tear down an old building and replace it, we incur new costs of embodied energy in construction materials
This speaks to the importance of planting trees in urban areas to lower ambient temperatures and reduce the need for air conditioning.
With the shutdown of much of the economy, we can see the human impact on air quality, and the underlying volatilization of chemicals from our activities.
On-line shopping with local delivery, has 2 to 5 times lower environmental impact than e-commerce from a central warehouse.
the legacy of lead deposition in the environment will remain with us for decades.