Monthly Archives: June 2017

All Abuzz

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A friend challenged me to take nature photos for a week, and it resulted in several very nice shots of our garden, if I do say so myself.

But one of the most enjoyable aspects of the exercise took place when I went to take pictures of the two lavender bushes in front of our house. I planted them a few years ago, replacing ones that had gotten woody and sparse. These two bushes are veritable pollen engines, and the air around them is usually humming.

Photo: PKR

But it was only when I leaned in to take photos that I realized just what a busy miniature ecosystem these two plants have become. There were at least three different bee species in addition to the humble honeybees I usually see there – unfortunately, I couldn’t get all of them to pose for me. Several of them kept insisting on harvesting from lower branches, out of easy camera range.

And then there were the hummingbird hawk moths, the closest thing we have here in France to hummingbirds, at least in terms of size, movement and preferred food source.

Hummingbird hawk moth (Macroglossum stellatarum).
Photo: Wikipedia

There were several other small pollinators, flitting black creatures I couldn’t catch on camera, as well as wasps, which I left alone. And then there are the lizards that lurk on the stone wall and the countless birds in the branches of the climbing vine, all waiting for an easy meal.

Photo: PKR

All this around two lavender bushes, a small world on our terrace. One more argument, if any were needed, on the value of planting for pollinators, even in limited spaces.

Photo: PKR

Heating Up, Cooling Off

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It’s a paradox of life that what gives us pleasure in moderation often gets us into trouble when we get greedy.

I’m not talking about food, alcohol, cigarettes, chocolate, or any of the other things that might come to mind. Because the second-highest heat index ever recorded in a city was marked today in Bandar Mahshahr, Iran – a mix of high humidity and soaring air temperatures yielded a ‘feels-like’ of 74°C (165°F).

So I’m talking about air conditioning.

Air conditioners in Istanbul, Turkey.
Photo: PKR

Modern air conditioning, the kind that transforms vast stretches of hot agricultural land into productive cities with office buildings and booming economies, was only invented in 1902. Before that, the height of technology when it came to cooling was the rotary fan, which was used as far back as the 2nd century in China (only for the very wealthy).

So what’s the paradox with air conditioning? Well, there are a few. For one thing, that delicious cool air comes at a price. It’s considerably more expensive than your average table or ceiling fan when it comes to electricity, because it needs a lot more power. A ceiling fan uses 25 to 90 watts of energy; central air conditioners can use as much as 2500 to 3500 watts. Even with increasing efficiency in AC units, and the expansion of renewable power generation, AC is still an energy intensive alternative.

Old-fashioned air-conditioning in Dubai. The tower catches wind from four directions and channels it down into the house.
Photo: Denise Chan/Flckr via The Ecologist

And then there are the ozone-depleting refrigerants. CFCs, HCFCs and HFCs used for cooling are all greenhouse gases. The worst of the coolants have been banned in western countries (starting in the 1980s with the Montreal Protocol*). HFCs were banned in a 2016 treaty signed in Kigali, Rwanda, with phase-out starting in 2019 in the United States and then gradually for other countries, notably China (2024) and India (2028).

Meanwhile, AC use is rising rapidly in these countries as the middle class expands. Berkeley National Laboratory estimates that about 1.6 billion new air-conditioning units will be installed by 2050. It’s almost like we’ve forgotten that we went for millennia without it, or have architectural techniques for coping with heat without AC – methods both ancient and new.

The more we use air conditioning, the hotter we make the planet, and the more we need air conditioning.

So get out your hand fan, crank up your ceiling fan (or in my case, table fan), and get ready for the next heat wave.

*Reagan signed the Montreal agreement with the words, “The Montreal protocol is a model of cooperation. (It) is the result of an extraordinary process of scientific study, negotiations among representatives of the business and environmental communities, and international diplomacy. It is a monumental achievement.”

Although President Donald Trump removed the U.S. from the Paris Agreement, there is little worry he will do the same for the HFC agreement – the phase-out is supported by the two U.S chemical companies that make HFC alternatives, the DuPont spinoff Chemours and Honeywell International.

 

Abundance of Sun

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June 21 marks the longest day of this year in the northern hemisphere, and thus, it’s officially summer. Happy Summer Solstice!

At least here in south-eastern France, the dog days have already begun – hot and sunny and cloudless and dry.

We’re in the midst of the year’s first proper heat wave, with the temperatures at near-record highs. There’s the sense that every year now, or at least most of them, will be record-breaking when it comes to heat.

We hooked up cisterns to catch spring’s ample rainfall – with any luck, that water will see the kitchen garden through what promises to be a very long season of sun spread over ever-shortening days.

 

 

Six of One

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I have an affinity for hybrids of technology and nature, whether in art or engineering. There was the Coniferous Clock made of cedar, fresh and green in spring, brown and withered in winter, that told a simple tale of a year’s passing.

Here’s a new take on using plants in a sleek design: The CityTree, made by Green City Solutions. CityTree is an urban air filter that uses moss to remove pollutants from city air.

CityTree.
Photo: Via CNN

In a cool trick of using densely packed moss that has more leaf surface area than other plants, the self-contained, mobile units are solar-powered, self-watering and are monitored via sophisticated sensors. They are estimated to remove the same amount of pollutants from city air as up to 275 trees. This can, according to the inventors, add up to the annual removal of 240 metric tons of CO2 per unit.

Like the super neat SmartFlower Solar installations of blossom-shaped solar panels that follow the arc of the sun across the sky – one is at a supermarket just down the road from our house – this is a great concept that has its price. In the case of CityTree, each unit is currently priced at around $25,000. The company states that the units are made from a high proportion of recyclable materials and have a long life, but how does that really break down in terms of resources, disposal, and maintenance over the long term?

CityTree with optional bench.
Image: Green City Solutions

Still, I like it. Even if achieving equivalent results doesn’t always mean the methods were equivalent. Six of one isn’t always the same as half a dozen. After all, plant a hundred trees or cover a hundred house walls in ivy, and you’ll be filtering city air for decades with very little overhead. But for that, you need the soil, the water and the will.

It’s a sign of our poor urban planning that we even need to talk about CityTree, but I have a feeling we might just be seeing more of them. The makers boast that CityTree has the services of a whole forest on the surface of 3.5 sq. meters (37 sq. feet).

It’s an intriguing and creative solution. They’re nice to look at, and I bet they smell almost like a forest.

Oakwood forest, Scotland.
Photo: Forestry Commission Scotland

A Part of It

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So many of us live in cities these days that when we think of The Environment, we think of it as something separate, elsewhere, an entity apart from our daily lives. 

Design & Nature shop window, Paris. Photo: PKR

We see slogans like Save The (Insert habitat or animal name here) and it’s not a place or creature we know like we know our own piece of green, or our family pet. 

We can say we are all part of a whole, but we go to a park and don’t take off our shoes to really feel that. 

We see a new construction project go up and like it or don’t like it, but don’t apprehend that this, too, is our own creature environment changing, and changing us. 

Design & Nature shop window, Paris. Photo: PKR

What does the loss of a glacier, a forest, a species of songbird have to do with your daily life? Go out and find the nearest patch of dirt or green or tree. Take off your shoes. Look around and be there, a part of it just for a moment. You are there as much as any of the creatures and habitats – no more, no less. 

It’s World Environment Day. Protecting parts of life doesn’t mean putting them in a museum or under glass any more for them than it would for you. It means protecting ourselves.