Source: The Harvard Business Review By: Alex Chen and Vivek Murphy September 16, 2019
There are two stories about climate change. The first is the one you hear the most; that if we don’t dramatically curb greenhouse gas emissions in the next decade, there will be dire consequences to our health and way of life. The second story is about optimism. It’s about how innovations large and small are helping us to mitigate these dangers and transform our economy and our lives.
Both stories are true. But the second one is rarely told. It’s also the reason why we believe that reining in climate change is possible. As doctors and entrepreneurs, we have witnessed the extraordinary capacity that people have to surmount challenges and maintain hope in the most difficult circumstances. Alice is the former Executive Director of Doctors for America and has practiced medicine in California and Washington, DC. Vivek, before serving as the 19th Surgeon General of the United States, co-founded a clinical trial optimization company and two organizations focused on improving health in India. From health care’s frontlines, we’ve witnessed the catastrophic costs of climate change, and have seen the public and private sectors– to varying degrees– respond. It is why we are both increasingly worried, and increasingly optimistic. And why we want you to be, too.
Comments by Ralph: Great article about climate change and a must-read if you have any doubts about ti being real as well as what we can do about it. Every little bit helps and by working together we can win the war against climate change.
When you are purchasing lighting these days and you choose LED, the reasons might be energy savings, longer life, environmental, or even because that is what is on the shelf. It’s definitely caused a revolution; however, many are just starting to see the many benefits beyond the most obvious. The below article and interview summary have some good additional reasons ….
We are in the midst of a lighting revolution.
The past decade has seen LED light usage soar in the U.S. as traditional incandescent bulbs went into the trash bin.
In 2010, incandescents were 68% of the bulbs installed in U.S. homes. By 2016, that number had declined to 6%.
That change has shaken up the industry in a good way. Mark Rea, professor at the Lighting Research Center at Rensselaer Polytechnic Institute, tells Here & Now’s Jeremy Hobson that the benefits of LED lights “really make it kind of a slam dunk for a transformation in the way light sources are sold.”
He says those benefits include how many lumens per watt LED lights provide, long-lasting capabilities, ease of control, their glow and the ability to have multiple color options.
On the benefits of LED lights
“I think there are two touted benefits. One is how many lumens per watt you get out of it. So an incandescent lamp might be 12 to 15 lumens per watt, and depending on the LED you might get 100 lumens per watt. So that’s a big jump. And the other is longer life. That depends on the application, but generally speaking incandescent lamp might last, say, six months in your home. These can last up to 10 years. So those are really big differences but there are other benefits that people don’t talk so much about. They’re easy to control. So you can do some fancy stuff with them whether you put them on a bridge or you want to have a disco. There’s no filtering that you have to do. It will directly emit the wavelengths you want so you can have a red one or a blue one or a white one.”
On LED lights’ effects on the lighting industry
“People hate change. That’s the first thing. I don’t think anybody anticipated what a disruptive technology [this] was really going to be. For 100 years, we’ve had just a handful of major manufacturers and they pretty well set the standards [and] the policy. And the reason was it was very expensive to try to be in that business. It took a huge capital expense that no one wanted to commit to, to say produce fluorescent lamps or incandescent lamps. With LEDs, they’re cheap and anybody can be a lighting manufacturer now. So it’s really brought down … these major players that really set the tone for ….read more at https://www.wbur.org/npr/746293491/led-lights
Were you squinting to see what was happening during Game of Thrones‘ Battle of Winterfell? The episode’s cinematographer says you might just need to adjust your TV set.
Many fans complained that certain scenes in Sunday’s climactic episode of Throneswere too dark to make out, but the director of photography Fabian Wagner, who shot “The Long Night,” lays the blame instead on fans’ TV settings. “A lot of the problem is that a lot of people don’t know how to tune their TVs properly,” Wagner told Wired UK. “A lot of people also, unfortunately, watch it on small iPads, which in no way can do justice to a show like that anyway.”
Even the room a viewer watches it can have an impact on the visuals, Wagner adds: “Game of Thrones is a cinematic show, and therefore you have to watch it like you’re at a cinema: in a darkened room… if you watch a night scene in a brightly lit room, then that won’t help you see the image properly.”
Comments from RG: if you like me, were one of the 17 plus million viewers, of Episode 3 last week, it did not disappoint. Good explanation on the lighting ….Maybe a little dim sometimes but suspenseful every second. Can’t wait until tonight.