mixed greens
Far from green

Hydrogen is in the news these days as a potential clean-burning fuel that could help decarbonize the energy sector. Proponents say hydrogen fuel can solve the intermittency problems associated with …

Whom are we trying to fool?

Trees perform an environmental miracle, absorbing carbon dioxide (CO2) from the air during photosynthesis, releasing the oxygen that we breathe and storing the carbon harmlessly in their roots, …

Still over the moon

As a kid, I treasured a scrap of thin silvery material about four inches square, the souvenir of a school presentation by a visitor from NASA. He told us about the launch of a satellite called Echo, …