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Prof. Katharine Hayhoe Profile picture
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16 Jun, 4 tweets, 2 min read
Yes, we get heatwaves in summer. But climate change is loading the dice against us, making them bigger and stronger and longer ... and more deadly. Read more here: cnn.com/2021/06/16/wea…
How much worse is climate change making heatwaves? That depends on where and when: from 3-5F hotter for extreme heatwaves in the Southwest US to 600x more likely for the unprecedented Siberian heatwave from last summer. Sources: crd.lbl.gov/assets/Uploads… & worldweatherattribution.org/siberian-heatw…
This week also has impt implications for climate communication. It turns out that heatwaves and extreme heat are pretty much the only thing most people in the US associate with climate change and the need for climate action. Read our study here: yaleclimateconnections.org/2021/06/study-…

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More from @KHayhoe

Prof. Katharine Hayhoe Profile picture
10 Jun
As you know, there's a lot of trolling and hate on social media. Do you know of any studies that (a) analyze it, and (b) show whether such attacks expand offline? Not looking for studies on the spread of disinformation; asking more about the nature and scope of ad hom attacks.
Here's one example of how online abuse can be correlated with offline abuse; wondering if there are more, and if anyone has studied this? macleans.ca/politics/ottaw…
Often, the attacks that jump the gap from online to in person are profoundly misogynistic. huffpost.com/entry/anita-sa…
Read 4 tweets
Prof. Katharine Hayhoe Profile picture
4 Jun
Natural climate solutions can reduce 11% of Canada’s emissions (up to 78 MTCO2e per year) - new study by @natureunited_ca, the @nature_org of Canada, just released today. cc @cathmckenna @ElizabethMay @JonathanWNV @DavidSuzukiFDN natureunited.ca/what-we-do/our…
When we hear "Canada" we usually think "forests" ... but the analysis found the greatest potential for carbon storage in our agricultural lands through cover crops, nutrient management, agroforestry and more, with additional contributions from wetlands + grasslands.
In Canada we have a national + rapidly increasing price on carbon; so the study also looked at which measures are currently affordable & which will become affordable as carbon prices rise over the next decade.
Read 4 tweets
Prof. Katharine Hayhoe Profile picture
13 May
The emphasis on personal responsibility is one that other big oil and gas companies have used as well. Exxon, BP and Shell are 3 of the 20 companies responsible for 1/3 of global carbon emissions since 1965. (source: Heede, theguardian.com/environment/20…) ...
Here "three experts point to the history of the carbon footprint, a tool that tells you how much pollution you are creating. The fossil fuel industry, particularly BP, pushed this concept onto the masses in a hugely successful marketing effort 20 yrs ago." discovermagazine.com/planet-earth/h…
Just a few months ago, @Shell paid to have this tweet emphasizing personal responsibility promoted into my timeline. I replied.
Read 13 tweets
Prof. Katharine Hayhoe Profile picture
20 Apr
Love that we are talking about the importance of communication in science in our #vEGU21 session! I summarized my best advice to fellow scientists at a @Lamont_Doherty talk this past year, watch here:
In a nutshell:

1. Set a limit on your time, or you can be overwhelmed.
2. Focus on what YOU are good at! Writing like @KA_Nicholas? Vids like @ClimateAdam? Ice hockey, like Gabe Vecchi? princeton.edu/news/2021/03/2…
3. Don't be distracted by the seven-percenters.
Read 6 tweets
Prof. Katharine Hayhoe Profile picture
9 Apr
One quarter of the tweets on the US withdrawal from Paris Agreement were generated by bots and the majority promoted climate denial. This fits with my own experience: about 25-30% of those I have to block score v high on bot detectors (but over 70% don't!) tandfonline.com/doi/full/10.10…
A similar pattern was observed with misinformation that was deliberately manufactured and disseminated regarding the devastating Australian bushfires last year. Lies included the claim that climate activists started the fires to ... prove climate change?! theconversation.com/bushfires-bots…
We humans are suckers for false info that confirms our preexisting biases. That's why fake news on Twitter travels 6x faster than truth. In other words, on avg, the tweets by troll with 10k followers will reach further than those of a scientist with 60k. apnews.com/article/8da97e…
Read 7 tweets
Prof. Katharine Hayhoe Profile picture
24 Mar
Horrified to learn today that in the 5 years since the Paris Agreement, the world’s 60 biggest banks have financed fossil fuels to the tune of $3.8T. Top of the list is @Chase, which provides both @amazon & @united's reward cards. So what did I do? (next) ran.org/bankingonclima…
First, I cancelled my card as personal action is impt! But it's not sufficient. So next, I emailed customer serv explaining why. Then, I reached out to their sustainability team, **expressed my appreciation for what they'd already done** & asked if they'd consider a new provider.
And lastly, of course, I posted here too! Why? Because I hope you'll join me! The more voices we have encouraging companies to do the right thing, the better. It's all of our shared future that's at stake. There is no planet B.
Read 6 tweets

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