These headlines on the latest @WWF @ZSLScience Living Planet Index are completely wrong and misrepresent the reports findings.

Here's a short thread on what the report actually show🧵
Before I begin, let me be completely clear: The destruction of nature is a massive threat, equal to that of the climate crisis.

It is vital that we reverse the losses to biodiversity, & that will require systems wide transformation to our economies! 2/n
theguardian.com/commentisfree/…
The @LPI_Science is is a measure of the state of the world's #biodiversity based on population trends of monitored vertebrate species globally.

The index shows a staggering and alarming decline since 1970 3/n
@LPI_Science It is important to understand that the index is a composite that shows the *average* decline in sub-populations of the species that are being monitored.

Because of the somewhat abstract nature of the index it can lead to common misunderstandings:
livingplanetindex.org/about_index
When we take a closer look -

"the number of species which have positive and negative trends are more or less equal, this means that the magnitude of the declining trends exceeds that of the increasing trends in order to result in an average decline for the global LPI."
This is also what we see at the population level...
So you can see that claims that "70% of animal populations have been wiped out" or that "we have wiped out 70% of animals" are not at all accurate interpretations of this index shows us 7/n
The continued decline of the index is bleak news, but if we know that many populations are increasing we can learn what works from that.

As @ConservOptimism says "amongst the stories of loss there are inspiring stories of regeneration and positive change"
conservationoptimism.org
Given the continued #AttackOnNature I believe we need to go much further; its not just protecting the environment & conserving species, ultimately its about our survival on this planet!

Please read this excellent paper by @CharlieJGardner & @JMBecologist
I'm glad to see that @guardian have updated their headline - that's much better.

I hope that @thetimes will do likewise! /end

I see @_HannahRitchie of @OurWorldInData has also done a thread on the new @LPI_Science.

Worth checking out:

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More from @ThierryAaron

Oct 14
*Announcement*

In light of their decision to invite two notorious climate deniers to speak at their conference, I have decided I must withdraw from participating in the CC Forum "Investment in Sustainable Development" event in London next week london.cc-forum.com

🧵1/8 Image
Given the immense stakes & need for immediate climate action, I cannot in good conscience lend legitimacy to an event that would profile grifters who knowingly shill for fossil fuel polluters, even as millions have their lives & livelihoods destroyed by climate impacts 2/8
I was initially excited to speak at the event, billing itself as a “conference which is 100% dedicated to investment in sustainability”. But was horrified to subsequently discover Monckton & Morano added to the agenda. Both are infamous for spreading climate disinformation 3/8 Image
Read 8 tweets
Oct 11
I'd normally not bother wasting time on this nonsense from @benleo444, theres simply more important work than repeatedly putting to bed zombie climate denial talking points, but in solidarity with @JustStop_Oil protesters risking their liberty, here goes🧵
@benleo444 @JustStop_Oil Q1. “Why was there a warming period in the Roman times over a couple of hundred years, it was exceptionally warm and then it got cold. There wasn’t any industrial revolution?” 2/n
A. There was no global warm period in Roman times, it was a regional fluctuation due to variability in the climate system 3/n

nature.com/articles/s4158…
Read 22 tweets
Sep 15
Several people asked if I could share the slides from our #TippingPoints conference session. So I thought I'd put them up here too.

Thanks to all who took part. I look forward to working together to grow our understanding of social movements can accelerate tipping points🧵1/n
The importance of building powerful social movements with carefully targeted campaign goals came up repeatedly throughout the conference.... 2/n

Movements are a crucial to achieve social change, as it is not enough to just have evidence, or even to communicate it with compelling stories, you also need to build counter-power that can force change in the existing system 3/n
Read 13 tweets
Aug 29
I’m thrilled to announce @StuartBCapstick @EmilyCoxSussex @berglund_oscar @steviedubyu, @JKSteinberger & my new paper in @NatureClimate on why scientists should consider participating in civil disobedience to promote climate action.

Here's a short🧵1/15
nature.com/articles/s4155…
We all know #climate action is incredibly urgent, the @IPCC_CH reports tell us we have a 'rapidly closing window to secure a liveable & sustainable future for all’

Scientists have been issuing such warnings for years, but it's not leading to the necessary political action 2/15 Image
We also know that a key reason insufficient action is being taken are power structures within society, particularly the influence of vested interests seeking to maintain the status quo.

As reviewed in this paper by @IsakStoddard @KevinClimate et al: 3/15
annualreviews.org/doi/abs/10.114…
Read 15 tweets
Aug 19
So, Jamie Dimon the CEO of @jpmorgan thinks "it is not against #climate [change] for America to boost more oil & gas".

Which could not be more wrong!

Here's a🧵on some science he (& his colleagues in the banking sector) may want to try to pass through their cranium... 1/20
@jpmorgan Firstly, #climate action is incredibly urgent, the @IPCC_CH reports tell us we have a 'rapidly closing window to secure a livable & sustainable future for all!' 2/20
It is "Now or never" if we are to have a chance of meeting the 1.5C climate target agreed at Paris.

As Prof. Jim Skea, Co-Chair of @IPCC_CH WG3 explains, we need "deep emissions reductions across all sectors". Starting NOW! 3/20

theguardian.com/environment/20…
Read 21 tweets
Jul 12
I'm in the UK & it's hot🥵🌡️

We typically talk of global average temp rise - but shifts in the mean can have big impacts on the distribution of extremes as this @NASAClimate video shows.

Here's a short🧵on what this means for future extremes... 1/n

@NASAClimate As the average temperature increases we see a corresponding shift in the extremes, so that previously rare heat extremes become common.

These extremes are temperatures to which we are not well adapted and can stress our infrastructure to breaking point. 2/n
One way to class the severity of an extreme is by statistics of the probability of occurrence.

A 2 sigma event is experienced ~2% of the time (or 2% of the surface in any year) - or on average once per 50yrs.

A 3 sigma event has 0.1% chance or 1 in every thousand years! 3/n
Read 12 tweets

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