Tag Archives: greenhouse gases

[OPINION] Westport Making Zero Progress Toward “Net Zero 2050”

Clarence Hayes joined Westport’s Representative Town Meeting in 2023. He serves on its Long Range Planning, Environment, Transit and IT committees.

He recently retired from a career in information technology. His final position was senior vice president of global networks at Bank of America.

Clarence Hayes

Clarence has 2 daughters and 5 grandchildren (2 are at Kings Highway Elementary School). 

An avid amateur naturalist and walker, he is concerned about the future of the planet — and the environment’s effects on Westport.

In May, Clarence wrote an Opinion piece for “06880” on electric cars, hybrids and SUVs in Westport.

It was not very encouraging. Despite a small drop in emissions from 2018 to 2023, it was like trading in your Hummer for a Suburban – a little less polluting, but nothing to brag about.

Today, he addresses greenhouse gas emissions. Clarence writes:

As part of my volunteer work in support of the RTM Long Range Planning Committee, I am analyzing Westport’s greenhouse gas emissions.

This analysis is on emissions generated by home heating. Unfortunately this situation is worse than my previous one. If cars get a “D” on the NetZero report card, home heating gets an “F.” Emissions have gone up.

Even though there has been a strong movement from oil heat to gas, it has been overwhelmed by the massive increase in the size of house

From 2014 to 2024, the percentage of Westport’s total occupied building area heated by oil dropped from 64% to 50%, an encouraging transition of 3.5 million square feet. Oil heat generates roughly 39% more greenhouse gases than natural gas for the same heat energy result. So this represents sizable progress.

However, accompanying this was a total net addition of 3 million more square feet to be heated. So even though all the new living area uses natural gas, the total net new emissions are greater than the reduction from the drop in oil heating.

This 7-bedroom, 8 1/2-bathroom home near Compo Beach is 10,061 square feet. It was built in 2014. 

Additionally, there has been only a trivial increase in electric, geothermal or solar assisted heating in the same 10 years, moving from 3.7% of the town total to a mere 4%.

How can we be going backwards?

The answer is obvious. Look around at the enormous white boxes with black windows, popping up all over town. Every renovation or teardown replacement results in a new structure which has at least doubled the living area of the one it replaced.

In the past 3 years, there were 179 teardowns, with an average increase of 222% in size. The average living area went from 2,567 square feet per property to 5,704.

Although the new structures are generally better insulated and sealed than those they replace, the improvements would have to cut energy consumption in half just to get back to the status quo ante.

Efficiency reductions of 30% or more are possible with new structures. Let’s say I have a house with 139 units of GHG emissions using oil to start with. I convert to gas and go down to 100 units.

Now I build bigger and increase the size 222%; we get 222 units of GHG. Then assume a 30% reduction in energy required due to improved seal/insulation in new structures. We drop back to 155 units of GHG – which is more than the 139 units of GHG we started with.

These results are based on the Westport Grand List at the end of 2014, and as of February 2024.

 Westport is making zero progress on its “NetZero 2050” objective.

The people with the largest GHG emissions in the world are those who can most easily make a meaningful contribution. It is much less impactful on one’s quality of life to make a 3 tons per person reduction, if your starting point is 28 (like Westport, -10.7%), as opposed to say 15 (like Bridgeport, -20%), or 7 (like China, -43%).

Much of Westport energy consumption is for show – a big, largely unoccupied house; big, impressive cars; large properties manicured by small armies of landscapers, etc.

If any town can afford to do something for the greater good of the global climate, it is Westport.

(Please contact me at chayes@westportct.gov with any questions on the analysis, or for access to the data.)

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[OPINION] EVs, Hybrids, Our Future — And Our Kids’

Clarence Hayes joined Westport’s Representative Town Meeting in 2023. He serves on its Long Range Planning, Environment, Transit and IT committees.

He recently retired from a career in information technology. His final position was senior vice president of global networks at Bank of America.

Clarence Hayes

Clarence has 2 daughters and 5 grandchildren (2 are at Kings Highway Elementary School). 

An avid amateur naturalist and walker, he is concerned about the future of the planet — and the environment’s effects on Westport.

He sent this to “06880” in an attempt to join his efforts with “other like- minded residents, to nudge Westport at least a tiny bit towards more environmentally friendly policies and outcomes.” Clarence writes:

As part of my volunteer work in support of the RTM Long Range Planning Committee, I am looking into ways to establish metrics on Westport’s greenhouse gas emissions (GHG).

The first area I analyzed was cars. There is a good data source: the town’s motor vehicle Grand List.

I compared the 2018 and 2023 Lists to determine the level and trend in GHG emissions, and to understand buying habits.

8.6 % of Westport vehicles are low emission hybrid or electric, which is slightly above average for the US. However, Westport has 2.3 cars per household — more than the national average of 2.1.

The latest amenity: a 4-car garage.

And Westport has a higher proportion of large luxury cars and SUVs. This more than offsets the benefit of the higher percentage of hybrids and EVs.

The emissions of the average Westport car are those of a Ford Mustang, Jeep Cherokee or Audi A6: nothing special.

(Click here to look up your car’s emissions.)

Two-thirds of all motor vehicles in Westport were replaced in the last 5 years. Excluding new registrations due to changes in residence, Westporters made 13,591 purchases in this period – 10 cars every business day, non-stop.

And only 1 out of 10 buyers chose a low emission hybrid or electric vehicle.

Our decisions have impact.

  • 2023 was the hottest year since records have been kept. The first 4 months of 2024 are the hottest January  to April ever recorded — exceeding 2023.
  • From January through April, CO2 concentrations increased at a faster rate than they have in the first 4 months of any year since the start of accurate CO2 measurement in the 1950s.
  • The Intergovernmental Panel on Climate Change objective set in 2015 of limiting global warming to 1.5C degrees was breached in 2023.

Westport is among the world’s top climate polluters – higher even than Qatar!

The chart below shows per capita tons of CO2 equivalent per year.

Westport can do better.

Your next car is an easy way to make a difference.

You now have far more choices. There is an EV or hybrid for every need, from a single person driving only locally, to a family with 3 kids and a dog that goes up to Vermont every weekend to ski.

Do you really need a Ford Expedition, GMC Yukon or Chevy Suburban? Will your teenager be emotionally crippled if they don’t get a Jeep Wrangler?

The latest safety research shows that the high hoods of these big vehicles directly correlates with an increase in pedestrian deaths – the opposite of the “Safe Streets and Roads for All” program that our town touts.

Plenty of 7-seaters which are lighter, less polluting, and safer for our streets. Get your teenager a used Nissan Leaf, and make the EV a new status symbol at Staples.

If you want to show off with the biggest, coolest, most expensive car on your block, you can do so in a less polluting manner. You have options!

Mom, 3 kids and a dog can go electric. Be the first on your block — or with a plug-in hybrid.

So, please: With your next car, make a difference … for the climate, and your grandchildren.

(If you have questions, or would like a copy of the data and analysis, email chayes@westportct.gov.)

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PS: Though what I’ve written above is not the most climate-friendly approach, it is better than nothing.

However, it does not take into account:

  • Upstream emissions: CO2 emissions from electricity generation, and the extraction/refining of petroleum.
  • Manufacture/materials: CO2 emissions from energy consumed in the extraction of materials and manufacture of new cars.

What you should really do to help the climate:

Keep the old car – or buy a used hybrid or EV.

If you have a gas car in good running condition, don’t get rid of it. Take good care of it and keep it as long as possible.

The manufacture of a new car creates CO2 emissions typically equal to at least 50% of the lifetime tailpipe emissions of the car. The longer you keep it, the greater the amortization of those emissions, and the lower total impact to the atmosphere over time.

I have a 22-year old gas car. I maintain it well, and I only drive locally. Manufacturing a new car creates a huge new injection of CO2, vs. the much smaller repeat incremental CO2 from my driving.

Buy the minimum needed.

Whatever you do buy new, fit it to your real transport needs — and keep it as light as possible. For example:

  • The Rivian EV creates 122 gmCO2/mile in “upstream emissions” —  the same as a Volvo SUV hybrid. The Nissan Leaf EV creates only 88 gmCO2/mile in upstream emissions.
  • The Rivian weighs 7068 pounds, versus 3509 for a Nissan Leaf –  double the emission impact from manufacture.

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Nissan Leaf.