The atmosphere is a giant sponge: A mosaic about precipitation trends

Water. A basic necessity for life. But, as with most other things, climate change is going to mess with water too.

In general, wet areas are going to get wetter and dry areas drier (with exceptions to the rule, of course). Here’s how it works in a nutshell: A warmer atmosphere increases evaporation and is able to hold more water. So as warmer temperatures suck the moisture up into the atmosphere, which holds onto larger quantities of it for longer stretches of time, the land dries out more quickly, thereby increasing the risk and potential severity of drought. When the precipitation does eventually fall, it is with less frequency but higher intensity, resulting in, you guessed it, increased risk of flooding. In addition, warmer temperatures also mean that more precipitation falls as rain instead of snow. Less snow means a smaller snowpack, which reduces our summer water resources—normally the snow melts gradually and recharges water sources for important things like, say, agriculture. Well, not so much in the future. So, a warmer world is both wetter and drier, more drought stricken and more flood prone.

“Changes in the global water cycle in response to the warming over the 21st century will not be uniform. The contrast in precipitation between wet and dry regions and between wet and dry seasons will increase, although there may be regional exceptions.” (IPCC AR5, 2013, “The Physical Science Basis: Summary for Policy Makers“)

This mosaic is all about that growing divide between water-logged and arid regions and the fact that, when the rains do come, they won’t quench our thirst, as the deluge will simply run off our parched, sun-baked soils and endless expanses of concrete without a chance to seep in, get taken up by trees and plants, and recharge our aquifers. It’s that idea of suddenly and overwhelmingly having what you need but being unable to use it that’s behind the title of this piece: “Drinking from a firehose (Flood prone yet drought stricken).”

"Drinking from a firehose (Flood prone yet drought stricken)" mosaic by Julie Sperling about climate change and precipitation

“Drinking from a firehose (Flood prone yet drought stricken)” (2015), 19″ x 14″ — Marble, ceramic tile, mudstone, smalti, glass tile, brick, terracotta, sandstone, slate, thinset tesserae, and garden hose faucet handles

Proudly displaying my find (Not pictured: Wheels already turning in my head)

Proudly displaying my find (Not pictured: Wheels already turning in my head)

The proto-idea for the mosaic had been sitting idly in the back of my brain ever since I found the two garden hose faucet handles in an abandoned lot near my office on one of my lunchtime scavenging outings over a year ago. Yep, sometimes it takes that long (and often longer) for that seed of an idea to take root and sprout.

The idea was to have the fiery side and the watery side emerging from / spinning into the faucet handles in opposite directions. You know, turning the taps on and off. And they do rotate in different directions. But depending on whether you see them as coming out of the faucets or getting sucked into them like a drain, the drought doesn’t necessarily match up with the faucet closing and the flood with it opening (righty tighty and lefty loosey, respectively). This bugged me for a while, being the perfectionist that I am, but then I made my peace with it, embraced the ambiguity, and am now simply content that they move in different directions relative to the faucets. It is enough.

Flood

Flood

Drought

Drought

About halfway through this mosaic, it suddenly hit me: I was applying some of the things I had played with / learned during the IMA challenges. Until now, the impact of these challenges on my work had been fuzzy and intangible at best. But now here I was, weaving the lines in more than one colour and material (just like I practiced in Week 2) and also making use of negative space between the lines in the tangle (sort of like in Week 13). Now, I probably could have done this piece without the IMA challenge experience under my belt, but I like to think that in some way having gone through those challenges shaped the decisions I was making, even subconsciously, and my work was better for it.

Learning how to weave the lines over and under

Learning how to weave the lines over and under — a chronological progression

I must be a glutton for punishment, because making the lines meander and crisscross like this is certainly a challenge. Building so many lines in parallel and keeping track of each one’s direction relative to the rest of the jumble and how they’re going to go over and under each other is such a headache. And yet I love doing it. I have absolutely no plan when I set out on one of these undertakings. In many ways they are the most unpredictable of the work that I do. The lines take me on a journey and, while I may protest occasionally (“No, contrary to what you may think, dear line, I believe you really do want to veer left over here”), I generally just do their bidding. Maybe that’s why I love doing it so much: the element of surprise and the unknown keeps me engaged and on the edge of my seat.

Flood detail

Flood detail

Drought detail

Drought detail

The divide between wet and dry

The divide between wet and dry

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3 Responses to The atmosphere is a giant sponge: A mosaic about precipitation trends

  1. Aparna July 23, 2015 at 11:15 am #

    Wow!! This is much too beautiful for the ugly truth it represents!

Trackbacks/Pingbacks

  1. Why make mosaics about climate change? | Julie Sperling Mosaics - August 11, 2015

    […] “Drinking from a firehose (Flood prone yet drought stricken)“ […]

  2. How does your (rain) garden grow? A mosaic about really green infrastructure | Julie Sperling Mosaics - July 25, 2017

    […] might recall that climate change is going to mess with precipitation trends (I made a mosaic about it a while back) and, as a result, some areas of the world will experience more intense […]

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