Daily Archives: April 26, 2018

Good grief, at last.  After spending fortunes cooling their buildings with old energy systems, Las Vegas casinos are finally seeing dollar signs in the free desert sun.  Starting with a solar array atop Mandalay Bay in 2014, expanded to 20 … Continue reading →

Millions of deaths each year from air pollution are driving city governments to zero-emission public transportation.  With the largest population and worst air pollution in the world, China is now leading the way in adding an estimated 9,500 zero-emissions buses … Continue reading →