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Ed Hawkins

@ed_hawkins

Jan 12

Changes in global temperature (1850-2022)

"The data from 2022 is stark, however you look at it. Whether you view the raw figures, or look at the data as another red line added to the climate stripes, the message is clear. Excess heat is building up across the planet at a rate unprecedented in the history of humanity."

"The latest stripe added is the second-darkest red, but is very close to being in the darkest red category. This is remarkable, given that La Nina has helped to hold temperatures down. When we see a return of a warming phase of El Nino, the darkest red stripes will return."

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Ed Hawkins

@ed_hawkins

Aug 30, 2022

Why are we still building housing developments with gas for heating, no solar panels on roofs and no cycling infrastructure?

This provoked a LOT of discussion!
Focussing on UK, there will be no gas boilers in newly built homes after 2025. Positive step but could have come much earlier & has locked-in expensive retrofitting. Heat pumps rather than hydrogen boilers are planned solution for most homes.

And, many commenters added other issues that could be improved in new housing developments: harvesting rainwater, improved biodiversity, avoiding floodplains, community infrastructure... would all need more regulations & joined-up planning.

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Ed Hawkins

@ed_hawkins

Jul 26, 2022

As expected, the new #readingfc home kit has provoked some strong reactions!

- Love it!
- Like the idea but not the design
- Worst kit ever!

Whatever your view, the kit has started a conversation.

So, what do the sleeves represent and what does the science say?

The sleeve colours represent the change in annual temperature in Reading, with one stripe per year. Red for hotter years.

Since the club was founded in 1871, temperatures in Berkshire have risen 1.5°C.

This is primarily due to us burning fossil fuels such as coal, oil & gas.

None of this is controversial.

The science is clear and has been understood for decades.

Every national government recognises that rising temperatures are caused by our actions & that these bring severe consequences which we should avoid.

But what actions need to be taken?

Read 7 tweets

Ed Hawkins

@ed_hawkins

Jun 21, 2022

How do the warming stripes start conversations about climate change? #ShowYourStripes
They are stark visuals which, with a single glance, instantly communicate the simple message that the climate is heating up.
Their strength is the innovative ways that people have adapted them.

@HouseOfTammam

At London Fashion Week, @HouseOfTammam put on a catwalk show with dresses, accessories and a cape with the stripes as a theme, reaching a new audience and winning awards for sustainability engagement.

@ENTERSHIKARI

The rock band @ENTERSHIKARI used the warming stripes to start climate conversations with music fans during a sell-out festival tour.

https://twitter.com/ed_hawkins/status/1165988138088484867

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Ed Hawkins

@ed_hawkins

Jun 20, 2022

Whenever climate change & UK heatwaves are discussed someone will always say: 'but what about 1976?', as if this was evidence that the climate has not changed.
And, yes, summer 1976 was hot in the UK. It may not be obvious which map is 1976 when comparing with the last 8 summers.

But, taking a global view is important. Variations in the weather mean that locally some years are hotter & some cooler.
1976 clearly stands out as unusual. It was far cooler virtually everywhere when compared to the last 8 summers.
The UK happened to be an exception that year.

Local experiences of weather events are important - people are realising that we are living through more frequent & more intense heatwaves overall.
But relying on feelings about events from nearly 50 years ago is not a reliable way to understand the changes that are happening.

Read 4 tweets

Ed Hawkins

@ed_hawkins

May 26, 2022

@GretaThunberg

Delighted that the Warming Stripes were chosen for the cover of @GretaThunberg's new book.
These 172 coloured stripes represent how global average temperatures have increased from 1850 to 2021. Billions of observations taken by many thousands of observers in one simple graphic.

https://twitter.com/GretaThunberg/status/1529888726054318095

The graphic used for this book continues the stripes backwards in time on the spine & back cover. For the period before 1850, information from 'paleo' sources are used, i.e. data from tree rings, corals etc. Because of the dimensions of the book the back cover goes back to 1630s.

The paleo-data is actually available for the last 2000 years, and highlights the unprecedented nature of the recent warming. The rapid change is mainly caused by our burning of fossil fuels to generate energy, starting with the invention of the steam engine.

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