Tag Archives: Ocean acidification

Rivers & Oceans

Some species benefited from BC’s 2021 heat dome — but at an enormous cost, study finds

Editor’s note: Millions of marine creatures may have perished in the Discovery Island’s during the 2021 heat dome. Their remains covered the beaches at places like Smelt Bay, Mansons Lagoon and Squirrel Cove on Cortes Island. Dr. Chris Harley, from UBC, initially told the media that more than a billion mussels, clams, sea stars and other invertebrates may have cooked to death in the area between Campbell River and Washington state. The article that follows cites his initial estimate. As more data became available, Harley revised that figure to possibly as many as 10 billion.

By Hope Lompe, National Observer, Local Journalism Initiative Reporter

Some plants and animals are better off than they were before the 2021 heat dome, despite a week of record-breaking heat intensity across Western North America. 

In a study of approximately 50 species, researchers from across Canada found more than three quarters were negatively affected by the heat dome, while about 25 per cent actually saw a positive outcome. 

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Cost of Climate Change

The Suicidal Ordinary – The Quadra Project

The ordinary is not ordinary. We become accustomed to it because it is what we experience and do everyday, so it usually evades careful examination and evaluation. The normal is supposed to be normal. And yet, from the perspective of our human history and our planet’s biophysical history, what is happening now is unprecedented in almost every regard. Our knowledge is rising at a rate unparalleled in our past, while our influence on the ecosystems that have kept our planet stable and reliable for our purposes is being transformed by our activity.

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Cost of Climate Change

The Quadra Project: The Sinking of Carbon Sinks

Of the 37.4 billion tonnes of carbon dioxide we emitted into the atmosphere in 2024 from burning fossil fuels, about half was sequestered by the planet’s oceans, soils, forests and other natural processes. But evidence is suggesting a weakening of this service, some of which is related to heat—and 2024, was the hottest year ever recorded since we were a Homo species inhabiting Earth. Among other factors, photosynthesis—the process that plants use to convert atmospheric carbon dioxide into sugars and an oxygen byproduct—begins to slow when temperatures rise too high, until it stops at 45°C. Consequently, certain areas of the planet sequestered absolutely no CO2 in 2023.

“We’re seeing cracks in the resilience of Earth’s systems. We’re seeing massive cracks on land—terrestrial ecosystems are losing their carbon store and uptake capacity, but the oceans are also showing signs of instability,” says Johan Rockström, director of the Potsdam Institute for Climate Impact Research (“Are Earth’s Carbon Sinks Collapsing?” by Patrick Greenfield, The Guardian Weekly, October 25, 2024). “Nature has so far balanced our abuse. This is coming to an end.” Should this happen, we will be unable to meet any of our climate goals.

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Cost of Climate Change, Technology

The Quadra Project: The Uninhabitable Part 2

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David Wallace-Wells divides his book, The Uninhabitable Earth: Life After Warming, into four sections, each dealing with the effects of a warmer planet on human life. The first, “Cascades”, deals with the general notion that every single climate event will trigger a multitude of effects. For human civilization, this will mean a multiplying of stresses all amplifying the seriousness of each other in a “cascade” of complex problems, none of which can be solved without solving all the others. Once problems reach some unspecified level of disruption, they become so interconnected that they overwhelm our ability to address them. This means that we regress rather than progress. And just as progress tends to amplify itself, the same applies to the deconstruction process, until the structure of a civilization is so riddled with dysfunction that it is no longer viable.

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Cost of Climate Change, Rivers & Oceans

The Quadra Project – Deep Water

When we think about environmentalism, we tend not to consider the oceans because we don’t live on or in them, and they are just there as they have always been, defining the edge of the land that we occupy. Of course, oceans provide us with most of our fish, but in the popular understanding, they are mostly experienced as vast spaces of waves and wet that separate the faraway continents that we visit. So we tend to give much more importance to landscapes that we occupy. And because we live within the thin layer of air that girdles the globe, weather is also a concern to us. But we generally don’t consider that much of our climate and weather is determined by what happens in the oceans.

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