Category: Climate Change

It’s real.

Savannah’s Springfield Canal stormwater project likely casualty of Trump cuts

Post author By Shelley Powers
Post date February 17, 2025

No one home

Trump’s first action on becoming President was a wholesale revocation of several Biden Executive Office actions, leading to closure of many vital programs. One of these programs is called the Justice40 initiative.

For the first time in our nation’s history, the Federal government has made it a goal that 40 percent of the overall benefits of certain Federal climate, clean energy, affordable and sustainable housing, and other investments flow to disadvantaged communities that are marginalized by underinvestment and overburdened by pollution.

By killing the Executive Order that created this initiative, Trump has likely also killed all FEMA funding for a Savannah project to manage stormwater flooding in the Springfield Canal area.

The Justice40 Initiative was a way of allocating resources to historically underserved communities, such as the Carver Village and Cloverdale neighborhoods near the Canal. It wasn’t race-based and in fact made a point of excluding race in its criteria. However, it is a fact that many of the underserved communities in this country are made up of people of color. And because the majority of communities of people of color will benefit, the funding is targeted. The existence of “DEI” is the excuse, but really it is withholding funds that don’t benefit majority white people.

Currently, freezing of these funds is being held up by a court order, though the enforcement of the order is hit and miss. However, because of the association of the funds with environmental justice (“DEI”), and climate change, there’s a strong likelihood the funding will be lost.

It’s difficult to discern from the state of chaos currently in effect in the government, but the funding for the Basin flood control may already have been rescinded.

The state of Georgia, being Republican-led, didn’t join with the other states who have sued the Trump administration to ensure that funding that is promised is delivered. And the states lawsuit court order only extends to the Democrat-led states who filed the complaint However, thankfully, nonprofits also sued to stop the funding freeze, and this may protect the funding for the project. For now.

If the funding is terminated, Savannah will likely have to sue directly to attempt to enforce the previously approved support, or perhaps get funding from the state of Georgia, instead.

Or wait another four years for a different President.

Tags DOGE, Musk, Savannah, Trump

Climate Change Savannah Weather

Flood city

Post author By Shelley Powers
Post date August 10, 2024

Highway 17 from Chatham county into Bryan.

The Ogeechee river still hasn’t fully crested yet in the Savannah area. All the roads around my home are now closed, either completely or to thru traffic. We’re not at risk of flooding, but others aren’t as lucky.

River records were broken in Ellabell and Richmond Hill. And this with us getting only about 10 inches of rain from tropical storm Debby, instead of the 20 or more originally predicted.

Climate change isn’t creating more hurricanes, but the ones we get last longer and drop more rain. Debby is only the beginning, I hate to think what will happen when that 20 inches of rain comes.

Add to this, the leaders in our area and their very poor planning. They sacrifice all in the name of growth. They’re allowing development on wetlands and into marshes. The wetlands are nature’s sponges; they help control how much water floods the streets and how quickly it flows into the river.

The new developments have these little stormwater lagoons that are supposed to take the place of the wetlands. Well, as we found out this week: they failed.

The hurried and excessive development is putting stress on infrastructure, including road access and stormwater management. And all they’re doing now, is starting a study to see how to fix it. A study.

By allowing this uncontrolled growth, more homes will be put at risk, and we’ll be dealing with increased river and stormwater flooding at the same time climate change is raining sea levels and increasing rainfall during tropical cyclones.

Flood insurance. We’re supposed to be completely out of any risk zone, but I’m not sure I can bank on this assumption now.

Climate Change Energy Users

Multi-stage heat pumps are the cat’s jammies

Post author By Shelley Powers
Post date January 11, 2023

My friend Simon St. Laurent posted a video on Facebook that goes into the mechanics—and efficiencies—of a heat pump.

Homes in Savannah are primarily cooled and heated by heat pumps. The house we bought had a 2.5 ton unit, with the interior portion in the attic. Being new to HVAC systems installed in the attics, we weren’t familiar with the important rule to these units:

You have to treat your condensate pipes at least 4 times a year for them to remain unclogged at all times.

It wasn’t until we saw water dripping down the wall from the air intake vent that we realized we had a problem. Water had been collecting in the plenum (that’s the piece that holds the HVAC in a vertical system and provides duct attachment) and badly rusted it. The cost to replace the plenum was enough, and the system only a few years shy of replacement, so we decided to replace the system with a new one.

For the size of the unit, I performed my own analysis using the extremely difficult to use Manual J calculations and determined we really needed a 2.7 ton heat pump. Because of the smaller size, our unit was running for longer periods of time, but it also wasn’t short cycling—the unit wasn’t turning on and off too frequently. Short cycling is the death of an HVAC unit, which is why HVAC companies typically recommend a smaller unit if your home needs fall between unit sizes. Still, constant running isn’t highly efficient, either.

When we bought our new unit, we went with a 3-ton unit, which normally would be a little too large for our smallish house. However, we also bought a multi-stage rather than a single-stage heat pump. Specifically, we bought a 5-stage heat pump from Carrier.

A multi-stage heat pump doesn’t just run on and off, it also runs at lower capacities, with matching lower speed fan. The unit runs longer, but uses less energy because it’s running at a lower speed compression. You also don’t get sudden blasts of high heat or freezing cold that you would with a single stage heat pump. And you rarely hear our unit because, for the most part, it runs at stage 1 or stage 2.

We could have gone with a full ‘infinity’ stage unit, with an infinite number of stages, but our small home and smaller unit size doesn’t justify the additional expense. We could have also gone with a two stage unit—a very popular option—but I liked the idea of the unit being able to run at even lower speeds than what you normally get with a two-stage. Our system can run as low as 25% capacity versus the typical 70% capacity you get with a two-stage.

Unlike single-stage heat pumps, you don’t set cooling temps uncomfortably high and heating temps uncomfortably low in order to save on energy use. The real key is find your comfortable temperatures, but when you vary them throughout the day, do so gradually. When you change the temperature by one degree, the unit is able to power down but still meet the new temperature demand. With the smart thermostat we bought, the unit actually anticipates the temperature change and begins to gradually cool or heat to meet it.

We’ve had the unit for one year and I did an analysis of *energy use for the year. I found we used 17% less energy than the previous year. This doesn’t seem like much until you consider that we’ve set the house for more comfortable temperatures, especially in the hotter summer. In addition, we had a hotter summer in 2022 over 2021, as well as a freakish period of below 20 degree weather this winter. (We used a base heater in the garage during the subzero weather to keep garage pipes unfrozen. Without this demand, our energy use would have been 19% less for the year.)

I estimate the new unit will pay for itself in energy savings within 5 to 7 years. The savings will pay for the higher cost of a multi-stage system within two years.

Heat pumps aren’t for everyone. But unless you live in the frigid north, keep them in mind the next time you replace your HVAC. And if you get a heat pump, get a multi-stage unit.

*Only compare energy use, because electrical companies tend to screw with costs throughout the year.

Climate Change Weather

Floods. Again.

Post author By Shelley Powers
Post date September 14, 2008

Recovered from the Wayback Machine.

Ike continues to rain destruction down in its path. It’s good to hear the storm surges weren’t as bad along the Gulf, but they were bad enough. Hopefully, though, loss of life will be minimal.

Ike just passed through the St. Louis area with both wind and rain. A lot of rain that combined with the remnants of Lowell from the Pacific. Sad as it is to say, we’re again looking at major flooding along the Meramec, Missouri, and Mississippi rivers.

This will be our third major flooding event in six months.

Tags Missouri

Climate Change Places

Katrina comparisons

Post author By Shelley Powers
Post date June 28, 2008

Recovered from the Wayback Machine.

It is difficult to be sympathetic to people in Iowa and Missouri when you read some webloggers who gloat about how “well” their state did compared to how well the people did in New Orleans after Katrina. I think it’s time to take a closer look at events; to get some perspective on both events.

Early estimates put the number of damaged or lost homes in Iowa at about 8,000 to 10,000 homes, based on the number of displaced people. I estimate from the numbers I’ve heard in the last few weeks that Missouri will end up with about 500 to 1000 damaged or destroyed homes.

The number of homes destroyed by Katrina varies widely, but I’ve seen estimates from 275,000 to over 850,000 homes, many of them in New Orleans. In fact, 80% of the city was impacted, and only 45% of the New Orleans population has been able to return to New Orleans, years after the storm.

I couldn’t find numbers of people killed in the recent floods here in the midwest, but from an old estimate, we lost about 30 people. Over 1836 people died from Katrina, and the long term impact of the flood could result in thousands more dying.

Though we like to think floods along the Mississippi are sudden, this one was not. We had all the indications of a bad flood building up along the Mississippi beginning in April. The people impacted by New Orleans had three days, four tops, to prepare.

The people in Missouri and Iowa were not cut off and isolated. Most had neighbors and friends who helped. The people in New Orleans were shoved into a coliseum or left marooned on damaged bridges, as the surrounding communities would not let them leave the city. Why? Because rumors talked about roving bands of thugs shooting everything in sight; rumors proven to be untrue, but still persisting in places like Wikipedia—an article I nominate for being the worst edited, most inaccurate, and outdated article in Wikipedia. These people were left without water and food, in intense heat for days. No comfortable Red Cross shelters for them.

River floods like the recent flooding in the Midwest impact across class lines, especially after the federal buy outs resulting from the the 1993 flood. The flood in New Orleans impacted on some of the poorest people in this country. People who were then bused as far away as Salt Lake City, and cut adrift.

This recent flooding is terrible, and I don’t want to downplay the awfulness of the event, or the extent of the damage and the help that will be needed to rebuild in Iowa and Missouri. At the same time, it angers me to see those pontificating in how “better” we handled the flood than the folks handled Katrina in New Orleans and the rest of the south. Especially when the purpose for such comparisons is politically, and even racially, motivated.

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