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Ed Hawkins Profile picture
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21 Jun, 9 tweets, 7 min read
The planet is warming due to human activities, primarily burning fossil fuels & deforestation.

Climate change is happening here & now, and is already affecting everyone. The consequences will get worse for each bit of further warming.

#ShowYourStripes ShowYourStripes.info
Today is #ShowYourStripes day, when people around the world share how the climate is changing where they live. These graphics start conversations about our changing climate and what we can do about it.

Here are my stripes. Download yours: ShowYourStripes.info
TV meteorologists around the world are joining #ShowYourStripes to discuss how climate change is affecting their countries.

Here is @mollenweather showing the stripes for Uganda:
Knitting and wearing the stripes is also a popular activity! #ShowYourStripes
Anyone watching this weather broadcast would have learnt about how temperatures are increasing in Spain
And in Australia, @CommonGraceAus have presented beautiful #ShowYourStripes scarves to MPs to start conversations amongst policymakers
The same group also displayed the Warming Stripes outside the Parliament building in Canberra with pupils from a local school #ShowYourStripes
Did you see @Lauratobin1 join #ShowYourStripes this morning on @gmb? She even has a lovely stripey clock!

The Arctic is warming more than twice as fast as the planet as a whole. Download the free-to-use graphics here: ShowYourStripes.info
@Lauratobin1 @GMB And, @mnsaldivar uses #ShowYourStripes to explain the changing climate in Argentina to his viewers

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More from @ed_hawkins

Ed Hawkins Profile picture
21 Jun
How have the #ShowYourStripes graphics been used to start conversations about climate change in the past? (1/n)

Worn by Senators during the 2020 State of the Union address in the US: bbc.co.uk/news/av/scienc…
Displayed by @ENTERSHIKARI during Reading Festival to thousands of music fans. The lead singer @RouReynolds discusses what they mean and why they are important during the performance, stimulating new conversations. (2/n)
Made into dress form by @huprice, and worn when visiting policymakers to discuss climate change. (3/n)
Read 6 tweets
Ed Hawkins Profile picture
13 May
Two years ago there were 65,000 sheets of paper containing hand-written measurements of rainfall taken all across the UK & Ireland before 1960. Virtually all of the 5.28 million observations on these sheets were unavailable to climate scientists as they had never been digitised.
Thanks to @metoffice archives, these sheets were scanned & made openly available, but how could the observations be extracted?

The answer? Ask for help: bbc.co.uk/news/science-e…

16,000 volunteers stepped forward during the first UK COVID lockdown to transcribe every observation.
After a year of continued effort by a small team of volunteers we can now release the data!

Rainfall Rescue dataset v1.0.0:
doi.org/10.5281/zenodo…

3.3 million observations have been quality controlled, and combined into time series from 8485 rain gauges from 6095 locations.
Read 7 tweets
Ed Hawkins Profile picture
9 Apr 20
The #RainfallRescue volunteers are now digitising the very earliest UK rainfall data, from the 1860s and earlier.

Some stretch back to 1677, or they might stumble across rainfall records taken by Luke Howard.

Will they finish the job today or tomorrow? rainfallrescue.org
5 million observations rescued so far for the 1870s to 1950s. #RainfallRescue
Day 16 of #RainfallRescue.

The 15,607 volunteers will today finish transcribing the last of the 65,000 sheets of 10-year monthly rainfall amounts for the UK, spanning 1677 to 1960.

Truly amazing to see 5+ million measurements rescued from paper to digital in such a short time.
Read 5 tweets
Ed Hawkins Profile picture
20 Jan 20
But what happened before 1850?

A THREAD
Earth's climate has changed before for reasons nothing to do with human activity. Changes in the position of the continents, the sun's output, the number of volcanic eruptions, and the Earth's orbit have all influenced our planet's climate. Climate scientists study these reasons.
We know that none of those reasons can explain the warming measured since 1850. We also know that an increase in levels of greenhouse gases in the atmosphere will warm the planet, just as we've observed. It is our emissions of CO₂ that dominates recent warming trends.
Read 8 tweets
Ed Hawkins Profile picture
20 Sep 19
So, both @TheEconomist and @guardian feature the Warming Stripes on their front pages in print this morning!

Hopefully this will start a few conversations! #climatestrike
The @guardian have also decorated their website homepage with the Warming Stripes and a photo of @GretaThunberg for the #climatestrike: theguardian.com/uk
Thanks to the journalists: @Eaterofsun, @AlexSelbyB, @dpcarrington, @niko_tinius & everyone involved.
Read 6 tweets
Ed Hawkins Profile picture
23 Apr 19
"The climate has always changed" (or similar phrase) does not imply what many seem to think it implies. Let me explain.
Since the 1830s scientists have known that the Earth's climate changes without any human influence, e.g. ice ages. Variations in the Earth's orbit, the location of the continents, the energy given off by the sun & the magnitude of volcanic eruptions can all affect the climate.
Before widespread use of thermometers in the mid-1800s the effects of a changing climate are seen in tree rings, ice cores, corals & other 'natural archives'. The 'little ice age' is the most recent period where natural factors changed the climate by a small but detectable amount
Read 8 tweets

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