Building Integrated Photovoltaics
Here’s the way I like to explain building integrated solar PV (BIPV): “It’s not on the roof; it is the roof.” This is clearly destined for greatness over the coming years, especially as more states and other countries follow California’s lead in requiring net energy neutrality for all new construction.
Having said that, there are good designs and bad ones. The one shown above looks both light weight and as efficient as possible, given that the PV itself covers most of the roof surface.
The same can’t be said about the design on the right; looks like a loser in the marketplace to me.
Here’s a 
At this point, Biden is almost as abhorrent to environmentalists as the Republicans are, principally because of his tepid response to climate action, which, presumably, he adopted so as not to alienate conservatives. It would be far better for the vast majority of Americans if everyone wishing to defeat Trump were to rally around a true progressive. 
I get submissions from readers that “challenge” the laws of physics at the rate of four or five per year. Over time, I’ve become kinder to such people in my replies; I used to be fairly brutal, but there’s no reason for that.
In her fantastic article in 
Here’s a sad story on 
Clearly, there are two types of Trump supporters: Trump’s “base” of ignorant and hateful racists (perhaps 80% of the total), and wealthy conservatives who 
It’s the birthday of philosopher and writer 
Regardless of what happens to this civilization, it’s quite likely that the Trump phenomenon, as described so eloquently at the left, will very likely be regarded as a watershed moment. We will either turn this around, or we won’t. We’ll either find a way to conquer the hate, the bigotry and the mass hysteria, or we will descend into a societal abyss. 
Question: What state just passed the most ambitious climate target in the country, calling for carbon-free electricity by 2040 and a net-zero carbon economy by 2050? (Hints: a) it’s not California, and b) see pic here.)
