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Guy Marsden
70 followers -
I do not actively engage with Google+
I do not actively engage with Google+

70 followers
About
Guy's posts

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The population time bomb
I was a teenager in the 1970s and I had a poster from a lithograph (shown above) on my wall that was simply titled: "Overpopulation".  It was painted by John Pitre in 1973 and I remember spending hours looking at all the details of the thousands of nude or ...

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Climate Change and the Carbon Bubble
Image links to Andrew C. Revkin's article for the NYT from May3, 2013 Readers of my blog and website understand that I am deeply concerned about climate change and its impacts on the future of humanity.  I have been struggling with a good way to frame all o...

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Revised charging strategy for the 2017 Volt
I am still discovering differences between the 2012 Chevy Volt and the new 2017 model that I least a few weeks ago.  Previously, I wrote a detailed comparison of the two vehicles , but now I want to delve into the difference in the way these two vehicles ut...

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Climate change has crossed the tipping point
The greatest threat to humanity I am very committed
to living sustainably , and this commitment arises from
my deep concern about the future of humanity in the face of
accelerating climate change.  To put it simply, there is ...

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Climate change has crossed the tipping point
The greatest threat to humanity I am very committed
to living sustainably , and this commitment arises from
my deep concern about the future of humanity in the face of
accelerating climate change.  To put it simply, there is ...

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LED tail light upgrade for my 2017 Chevy Volt
When a friend of mine bought a used Prius several years ago, he told me that the first upgrade he did was to replace the incandescent brake lights with LEDs.  His reasoning was that LEDs light up a lot faster than filament lamps providing an earlier warning...

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Why I live as sustainably as I can
Since 2001, I have been doing my best to live as sustainably as I can .  There are several reasons for my commitment. 1. I'm an engineer dammit!  I enjoy the challenge of using technology to reduce my carbon footprint.  This includes increasing the efficien...

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Upgrading from 2012 to 2017 Chevy Volt


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A nice pice of ash - made into a bowl
Apple wood bowls  One of my hobbies (some would say obsessions) is wood turning.  In particular I like to make bowls from trees cut in my neighborhood or from logs that my friends bring me.  I sell some of these bowls in local craft galleries, and give othe...

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Installing a 245 W solar panel on my house
The solar array I have installed on my barn workshop currently consists of 31 solar panels all using Enphase micro-inverters .  The original batch of panels were only 175 W and cost me over $4/Watt in 2009, solar panel prices are now down to around $.50/wat...
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