@varylt.bsky.social Profile picture
Geographer - Geomorphologist - mainly thinking about the planetary crisis. He/him. Born 330ppm Dad 416ppm.

Mar 25, 2022, 12 tweets

It's final day of #USSmess. In the last strike I prepared a teach out on climate change - my take in 10 slides. Here's the twitter version. I wanted listeners to reflect on their knowledge of CC and whose voices get amplified eg Gates & tech-utopians vs me as a geomorphologist.

1. I started with a Quaternary Science perspective & a global temperature compilation that shows warming temps now are more rapid than warming events at the end of the last ice age.

2. I focused on recent warming trends by looking at the heat energy going in to the oceans - it's less variable than surface temps so you see the relentless rise, especially since the 1990s.

3. An increasing number of attribution studies now detect human climate change in many extreme events eg from my teaching Lago Palcacocha glacial lake flood disaster in Peru (1940s) wouldn't have happened. See superb interactive map on attribution studies by @CarbonBrief

4. So who is responsible for these emissions. Well it's the wealthy and their high carbon lifestyles, including academia. eg my first flight was the final year of my PhD then as a postdoc in Spain/UK lecturer I flew lots when I could afford to.

5. A lot is written about green growth, but if you don't just look at GDP but a range of indicators (cf @KateRaworth doughnut economics) then all countries are overshooting biophysical boundaries to meet social threholds.

6. Everyone should know this by now of course but there was oil industry funded climate denial, and now discourses of climate delay. Which of these relates to you?

7. Scientists are increasingly now recognising this thanks eg engineer @KevinClimate. He is a co-author on this recent Stoddard et al paper. Note summary points 4 and 5 on entrenched geopolitical power and orthodox schools of thought.

8. So what positive actions we can take. Here's data published in a Science paper showing we should eat less meat but also there is scope for mitigation strategies in the meat and dairy industries. I might have gone on a ramble about concentrated wealth & land ownership here.

9 This is UK Department for Transport car miles data. The acceleration over the last decade is insane. Consider artists recognised car culture was going to kill us way back when. Autogeddon, title from a Heathcote Williams poem, was 1994. And new road schemes are still approved🤦🏼‍♂️

10. The final slide was the @mzjacobson et al roadmap for an energy transition from fossil fuels. It can be done folks. Please share this great info graphic.

I ended with a slide of hope. A winter photo of birch woodland in the River Lea Valley - regenerated in a toxic ash pit from a former coal power station. And a @RebeccaSolnit quote from her Guardian long read piece on hope.

Share this Scrolly Tale with your friends.

A Scrolly Tale is a new way to read Twitter threads with a more visually immersive experience.
Discover more beautiful Scrolly Tales like this.

Keep scrolling