Dyer: I left my heart in the desert

Dyer: I left my heart in the desert

Kristy Dyer is a columnist for Black Press Media who writes about the environment

I left my heart (or maybe just my evaporative cooler) in the desert

Global warming is creeping up on the Okanagan, in the form of higher average summer temperatures and longer summers. Climate data and modeling show that our hottest summer days have moved from 34.8 C in 1980 to 36.1 C in 2020. A better measurement for summertime air conditioning is “cooling degree days”. You can think of cooling degree days as a combination of how hot it is and how many days are hot. It is a good measure of how much electricity you use for air conditioning (heating is measured by warming degree days). In 1980 we had 197 cooling degree days. Now we have 280 cooling degree days (all data from climatedata.ca).

Data and models for climate change in the Okanagan

What is really distressing is that this is a feedback loop: Hotter weather and more hot days means more air conditioning. Your midday air conditioning doesn’t come from carbon-free hydro power. It’s hard to turn dams on and off, so for short term power needs power companies have “peaker plants” that use natural gas. Burning natural gas adds to carbon in the atmosphere, creating hotter summer weather. But AC (sometimes referred to as “refrigerated air” or “freon air conditioning”) isn’t the only way to create an oasis in the desert.

Freon air conditioning isn’t the only way to create an oasis in the desert

The Okanagan is not my first desert experience. I lived ten years in New Mexico, which is similarly dry and hot during the summer. There are things I miss about New Mexico. Number one is fire-roasted green chiles, but a close second is the evaporative cooler. I associate evaporation cooling with joy, summers, listening to wildlife and thunderstorms, and iced tea.

READ MORE: Report: Are British Columbians addicted to air conditioning? AC costs increasing

Evaporative coolers don’t cause the feedback loop where the hotter days leads to more electricity use which means carbon emitted. They use a fan and a small electric pump to cool your house, requiring about a fifth of the energy of refrigerated air.

Generally evaporative coolers have one intake and the cool air is guided through the house by cracking open windows. Need it cooler in the kitchen? Open the kitchen window wider, close the one in the bedroom. Those windows bring in the smells (lilacs, rain on sage, BBQs) and sounds of summer (birdsong in the morning, owls at night, conversations of neighbors). The humidity evaporative coolers to indoor air is a welcome relief during the dry summer.

READ MORE: Researchers look at humidity as a weapon in the fight against airborne viruses

Another way evaporative coolers keep you in touch with nature is that they set a relative, rather than an absolute temperature. Evaporative coolers cool the house 15-25 F degrees below the outside temperature. If you intend to hide inside all summer long, emerging only to water your plants after dusk, a set temperature makes sense. If you are in and out, to the store, to the beach, to ride the KVR, then having the temperature be a difference rather than absolute is much better. Your body acclimates to summer and the shock of the outside air doesn’t flatten you. With an evaporation cooler the cool of the house is a relief but doesn’t require a sweater and a tuque.

With an evaporation cooler the cool of the house is a relief but it doesn’t require a sweater and a touque.

There are disadvantages to evaporative coolers. They are simple to operate and install but because it involves water, when something goes wrong, something gets wet. Like any humidifier if it isn’t cleaned regularly it can grow stuff you don’t want to breathe. I know people allergic to gluten, peanuts, strawberries and all fruits with pits. In ten years, I never met anyone who was allergic to evaporative coolers.

Missed last week’s column?

Dyer: Community solar gardens

About Kristy Dyer:

Kristy Dyer has a background in art and physics and consulted for Silicon Valley clean energy firms before moving (happily!) to sunny Penticton. Comments to Kristy.Dyer+BP@gmail.com

Like us on Facebook and follow us on Twitter.

Environment

Just Posted

Scooters lined up for an educational event in Stuart Park on Wednesday, June 16. (Amandalina Letterio/Capital News)
Free e-scooter safety training in Kelowna

Shared e-scooter operators collaborate to educate riders

The suspect reportedly assaulted a security guard and robbed him. The incident happened at a Kelowna hotel. (Contributed)
Okanagan Lake (File photo)
Thompson-Okanagan ready to welcome back tourists

The Thompson-Okanagan Tourism Association expects this summer to be a busy one

Employees at Playtime Casino wait outside while firefighters inspect the building after a small storage room fire on Wednesday, June 16, 2021 (Amandalina Letterio/Capital News).
Small fire at Kelowna’s Playtime Casino as staff preps to re-open

Fire ignited in the storage room, but the staff were able to put it out

Maxwell Johnson is seen in Bella Bella, B.C., in an undated photo. The Indigenous man from British Columbia has filed complaints with the B.C. Human Rights Tribunal and the Canadian Human Rights Commission after he and his granddaughter were handcuffed when they tried to open a bank account. THE CANADIAN PRESS/HO-Heiltsuk Nation, Damien Gillis, *MANDATORY CREDIT*
VIDEO: Chiefs join human rights case of Indigenous man handcuffed by police in B.C. bank

Maxwell Johnson said he wants change, not just words, from Vancouver police

A mother stands with her daughter, visiting senior parents but observing social distancing with a glass door between them.  The granddaughter puts her hand up to the glass, the grandfather and grandmother doing the same.  A small connection in a time of separation during the Covid-19 pandemic (Valley First/Contributed).
Have your say on which Okanagan, Thompson, Similkameen charities get donation

Valley First seeks public help to distribute $250,000 to local charities via social media campaign

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Tk’emlups te Secwepemc Chief Rosanne Casimir stands outside the former Kamloops Indian Residential School after speaking to reporters, in Kamloops, B.C., on Friday, June 4, 2021.THE CANADIAN PRESS/Darryl Dyck
Kamloops chief says more unmarked graves will be found across Canada

Chief Rosanne Casimir told a virtual news conference the nation expects to release a report at the end of June

Vernon Courthouse. (Jennifer Smith - Morning Star)
Sentencing delayed in North Okanagan child pornography case

Man who pleaded guilty to possessing child pornography will have new sentence date fixed next week

A woman wears a vaccinated sticker after receiving a COVID-19 vaccine at a vaccination clinic run by Vancouver Coastal Health, in Richmond, B.C., Saturday, April 10, 2021. THE CANADIAN PRESS/Jonathan Hayward
B.C. ranks among highest in world in COVID-19 first-dose shots: health officials

More than 76% of eligible people have received their 1st shot

People decided to tag Skaha Bluffs rocks which the Ministry has to go in and now clean up. (Facebook)
Bluffs at popular Penticton rock climbing park defaced

Ministry of Environment is going to clean it up

A screenshot of the First Peoples Cultural Councils First Peoples’ Map. (First Peoples Cultural Council)
Online resource blends B.C.-Alberta’s Indigenous languages, art and culture

Advisor says initiative supports the urgent need to preserve Indigenous languages

Most Read