Andy Roberts PhD

Scientist. Dad. Husband. Cyclist. Runner. Generally non work related tweets (follow @andyroberts1234 for sports medicine tweets)

[Andy Roberts PhD @andyrob1234]

@transportgovuk @activetraveleng @Chris_Boardman In other news, a single roundabout is approved at a higher cost than the entire active travel budget https://t.co/wPnnFZaHOz

[Andy Roberts PhD @andyrob1234]

@FamilyByCycle Really useful fb group and Google map with reasonably priced sites for bike packers https://t.co/WiulDLJkHk

[Yeah But Cyclists @but_cyclists]

A Lime bike rider, who was riding at 30mph in a 20mph zone, damaged their bike and then dumped it on a pavement with no regard for vulnerable pedestrians

[Andy Roberts PhD @andyrob1234]

@BladeoftheS Can't deny there's fewer obstacles in space!

[Andy Roberts PhD @andyrob1234]

@adrianwills @adamtranter Fewer parked cars if driverless ones are shared use

[Andy Roberts PhD @andyrob1234]

@CorthoUK @janrosenow Air to air and air to water

[Dr. Robert Rohde @RARohde]

~45% of US corn production is now used to make ethanol, mostly for mixing into gasoline.

That's ~13% of all US crop land already used for energy production.

Using some of the same land for solar panels would capture 50-100 times more energy per acre.

[Andy Roberts PhD @andyrob1234]

@g__j @OctopusEnergy Any reason why my monthly payment has just increased 3 fold?

My most expensive monthly energy usage was 'only' £540 over the last 12 months.

My account is currently in credit.

Are your projections for future elec costs that terrifying?

[Andy Roberts PhD @andyrob1234]

@DoctorVive Plan for the worst, hope for the best?

[Andy Roberts PhD @andyrob1234]

@RealTimVine I assume the rationale is to realise some psychological benefit which may have a bigger effect than the reduced draft

[Andy Roberts PhD @andyrob1234]

@A_MrBenMitchell Who sells a tesla battery for £3k?

[Climate Watcher 🔥 @pmagn]

Is this really happening?

Shocking but It shouldn't be too surprising after 2023, 2024 & Jan 2025 #arctic

[Andy Roberts PhD @andyrob1234]

@MaineUltraMaga @MarcNixon24 https://t.co/NYZZwFmS26

[Prof. Ryan Katz-Rosene @ryankatzrosene]

🧵Thread with examples of why it’s dumb to say “CO2 is only 0.04% of the atmosphere, so it can’t possibly have an effect!”

It’s time to just ignore the “400ppm is too small to have an impact” meme…

[Andy Roberts PhD @andyrob1234]

@deablosantos @SkyNews https://t.co/NYZZwFmS26

[Prof. Ryan Katz-Rosene @ryankatzrosene]

🧵Thread with examples of why it’s dumb to say “CO2 is only 0.04% of the atmosphere, so it can’t possibly have an effect!”

It’s time to just ignore the “400ppm is too small to have an impact” meme…

[Andy Roberts PhD @andyrob1234]

@VictorSmit1248 @MarioNawfal https://t.co/NYZZwFmS26

[Prof. Ryan Katz-Rosene @ryankatzrosene]

🧵Thread with examples of why it’s dumb to say “CO2 is only 0.04% of the atmosphere, so it can’t possibly have an effect!”

It’s time to just ignore the “400ppm is too small to have an impact” meme…

[Andy Roberts PhD @andyrob1234]

@medbob @ForgetfuP @endlibtyranny @RyanAFournier https://t.co/NYZZwFmS26

[Prof. Ryan Katz-Rosene @ryankatzrosene]

🧵Thread with examples of why it’s dumb to say “CO2 is only 0.04% of the atmosphere, so it can’t possibly have an effect!”

It’s time to just ignore the “400ppm is too small to have an impact” meme…

[Andy Roberts PhD @andyrob1234]

@elliot1233 @JamesMelville https://t.co/NYZZwFmS26

[Prof. Ryan Katz-Rosene @ryankatzrosene]

🧵Thread with examples of why it’s dumb to say “CO2 is only 0.04% of the atmosphere, so it can’t possibly have an effect!”

It’s time to just ignore the “400ppm is too small to have an impact” meme…

[Andy Roberts PhD @andyrob1234]

@hou_mal @JamesMelville https://t.co/NYZZwFmS26

[Prof. Ryan Katz-Rosene @ryankatzrosene]

🧵Thread with examples of why it’s dumb to say “CO2 is only 0.04% of the atmosphere, so it can’t possibly have an effect!”

It’s time to just ignore the “400ppm is too small to have an impact” meme…

[Andy Roberts PhD @andyrob1234]

@StoneAlun @Daedalus6 @kinlochleven7 @Ed_Miliband https://t.co/NYZZwFmS26

[Prof. Ryan Katz-Rosene @ryankatzrosene]

🧵Thread with examples of why it’s dumb to say “CO2 is only 0.04% of the atmosphere, so it can’t possibly have an effect!”

It’s time to just ignore the “400ppm is too small to have an impact” meme…

[Andy Roberts PhD @andyrob1234]

@kinlochleven7 @Daedalus6 @Ed_Miliband Did you know there's about 400 parts per million (ppm) of caffeine in coffee? There's over 400 ppm of CO₂ in our atmosphere today. If you've felt the surge of caffeine hitting your system, you've experienced the effects of just 400 ppm.