Charlotte Underwood
@scarlettthunder.bsky.social
Marine Ecologist | PhD | Research Fellow at the University of Plymouth | Ocean enthusiast 🐙| Avid pedestrian 💃🏼| Devout introvert | 🇨🇦 🇬🇧 🇺🇦 | She/her
All views are my own.
All views are my own.
Pinned
Behavioural rhythms of two amphipod species Marinogammarus marinus and Gammarus pulex under increasing levels of light at night
Artificial light at night (ALAN) is proliferating at an alarming rate across the globe, particularly around aquatic habitats. Natural and predictable light cycles dictate much of an individual organis...
dx.plos.org
The first paper from my PhD is finally out in PLOS! We examined how the circadian rhythms and activity levels of two different species of amphipods responded to varying levels of light pollution. Check it out here: dx.plos.org/10.1371/jour...
Reposted by Charlotte Underwood
This is very good. Clear, calm, factual, and devastating for proponents of bans on puberty blockers for trans youth.
theconversation.com/puberty-bloc...
theconversation.com/puberty-bloc...
Puberty blockers: why politicians overriding doctors sets a dangerous precedent
The government’s ban on puberty blockers undermines clinical expertise and targets trans youth with a policy that lacks evidence, consistency and fairness.
theconversation.com
November 23, 2025 at 11:42 AM
This is very good. Clear, calm, factual, and devastating for proponents of bans on puberty blockers for trans youth.
theconversation.com/puberty-bloc...
theconversation.com/puberty-bloc...
Reposted by Charlotte Underwood
NEW: The first two years of Massachusetts' millionaire tax has raised $3 billion more than expected.
And rather than driving the rich away, IPS researchers found that the number of millionaires has *increased.*
Tax the rich. Greg Ryan in @bloomberg.com:
And rather than driving the rich away, IPS researchers found that the number of millionaires has *increased.*
Tax the rich. Greg Ryan in @bloomberg.com:
Millionaire Tax That Inspired Mamdani Fuels $5.7 Billion Haul in Massachusetts
A millionaire levy in Massachusetts that New York City mayoral frontrunner Zohran Mamdani holds up as a model for taxing the rich has generated $3 billion more in revenue than expected without forcing...
www.bloomberg.com
November 12, 2025 at 4:01 PM
NEW: The first two years of Massachusetts' millionaire tax has raised $3 billion more than expected.
And rather than driving the rich away, IPS researchers found that the number of millionaires has *increased.*
Tax the rich. Greg Ryan in @bloomberg.com:
And rather than driving the rich away, IPS researchers found that the number of millionaires has *increased.*
Tax the rich. Greg Ryan in @bloomberg.com:
Reposted by Charlotte Underwood
Instead of trying to green cars so much why don't we just invest in trains. city trains. under ground trains. above ground trains. trains between cities. trains between countries. TRAINS
THE PEOPLE CRAVE TRAINS
THE PEOPLE CRAVE TRAINS
October 28, 2025 at 6:50 PM
Instead of trying to green cars so much why don't we just invest in trains. city trains. under ground trains. above ground trains. trains between cities. trains between countries. TRAINS
THE PEOPLE CRAVE TRAINS
THE PEOPLE CRAVE TRAINS
Found the sequoias in the New Forest, along with this bizarre but beautiful fungus!
October 24, 2025 at 4:21 PM
Found the sequoias in the New Forest, along with this bizarre but beautiful fungus!
I became a member of the Green Party a few days ago because they're the ONLY party talking about how wealth inequality is what's ruining the UK, instead of scapegoating immigrants. Tax wealth, not work.
“It’s outrageous to even talk about spending cuts when people are already exhausted and struggling. We need to tax the wealthiest and invest in our public services.”
Green Party leader @ZackPolanski says the government must stop punishing working people and start taxing wealth fairly.
#Peston
Green Party leader @ZackPolanski says the government must stop punishing working people and start taxing wealth fairly.
#Peston
October 21, 2025 at 9:01 AM
I became a member of the Green Party a few days ago because they're the ONLY party talking about how wealth inequality is what's ruining the UK, instead of scapegoating immigrants. Tax wealth, not work.
Everyone goes on about Friday the 13th. Well I'm here for Monday the 13th. The scariest number paired with the scariest day. Get spooked!
October 13, 2025 at 1:17 PM
Everyone goes on about Friday the 13th. Well I'm here for Monday the 13th. The scariest number paired with the scariest day. Get spooked!
One of the earliest articles on the impacts of anthropogenic light on animal behaviour from Science in 1887. I wish I could write my articles with such whimsy.
October 10, 2025 at 10:33 AM
One of the earliest articles on the impacts of anthropogenic light on animal behaviour from Science in 1887. I wish I could write my articles with such whimsy.
Reposted by Charlotte Underwood
NEW: GLOBAL RENEWABLES OVERTAKES COAL
How the heck did that happen so quickly?!...🧵
How the heck did that happen so quickly?!...🧵
October 7, 2025 at 6:06 AM
NEW: GLOBAL RENEWABLES OVERTAKES COAL
How the heck did that happen so quickly?!...🧵
How the heck did that happen so quickly?!...🧵
Reposted by Charlotte Underwood
Not nearly enough is made of the incredibly impressive feat Indian Railways has made to electrify almost 100% of its 135,000km of track, while also growing renewable sourcing. Huge:
timesofindia.indiatimes.com/business/ind...
timesofindia.indiatimes.com/business/ind...
Indian Railways to achieve net zero targets in 2025 itself - 5 years ahead of 2030 goal - Times of India
India Business News: Indian Railways is set to achieve net-zero targets by year-end, surpassing its 2030 goal through extensive electrification. Aiming for 95% electric tr
timesofindia.indiatimes.com
October 5, 2025 at 7:25 AM
Not nearly enough is made of the incredibly impressive feat Indian Railways has made to electrify almost 100% of its 135,000km of track, while also growing renewable sourcing. Huge:
timesofindia.indiatimes.com/business/ind...
timesofindia.indiatimes.com/business/ind...
Reposted by Charlotte Underwood
one of the most important technological revolutions in modern history and you're likely not hearing anything about it because it's making the oligarchs who control our information environment poorer instead of richer
Time for the world to install a gigawatt of solar power capacity
2004: A year
2010: ~ a month
2015: ~ a week
Now: A day
ourworldindata.org/data-insight... 🧪
2004: A year
2010: ~ a month
2015: ~ a week
Now: A day
ourworldindata.org/data-insight... 🧪
September 15, 2025 at 5:04 AM
one of the most important technological revolutions in modern history and you're likely not hearing anything about it because it's making the oligarchs who control our information environment poorer instead of richer
Reposted by Charlotte Underwood
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
But on the other, everyone likes it and cities become more livable
August 30, 2025 at 12:43 AM
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
But on the other, everyone likes it and cities become more livable
Constantly amazed at how hard it is to find a decent podcast app*
*that doesn't also bombard me with unskippable ads
*that doesn't also bombard me with unskippable ads
August 22, 2025 at 8:18 AM
Constantly amazed at how hard it is to find a decent podcast app*
*that doesn't also bombard me with unskippable ads
*that doesn't also bombard me with unskippable ads
Reposted by Charlotte Underwood
My least popular (and most correct) view is that cars should be automatically limited to the local speed limit. Put the pedal to the floor and you still can't go over 25mph in a residential area.
(15 in Manhattan btw)
(15 in Manhattan btw)
There is no possible justification for limiting e-bikes to 15mph but not cars.
New York Has a New E-Bike Speed Limit—and No Way to Enforce It
August 9, 2025 at 4:47 PM
My least popular (and most correct) view is that cars should be automatically limited to the local speed limit. Put the pedal to the floor and you still can't go over 25mph in a residential area.
(15 in Manhattan btw)
(15 in Manhattan btw)
The first paper from my PhD is finally out in PLOS! We examined how the circadian rhythms and activity levels of two different species of amphipods responded to varying levels of light pollution. Check it out here: dx.plos.org/10.1371/jour...
Behavioural rhythms of two amphipod species Marinogammarus marinus and Gammarus pulex under increasing levels of light at night
Artificial light at night (ALAN) is proliferating at an alarming rate across the globe, particularly around aquatic habitats. Natural and predictable light cycles dictate much of an individual organis...
dx.plos.org
August 8, 2025 at 9:53 AM
The first paper from my PhD is finally out in PLOS! We examined how the circadian rhythms and activity levels of two different species of amphipods responded to varying levels of light pollution. Check it out here: dx.plos.org/10.1371/jour...
Reposted by Charlotte Underwood
There are many real inequities that keep kids, especially girls, out of sports, and yet strangely we never hear the Save Women's Sports crowd talking about those. They're not running youth clinics, or gathering equipment donations, or doing anything to address really obvious barriers. Weird, huh?
If fairness in sports is something we cared about, then all private coaching, camps and all the other ways parents money give some kids an unfair advantage should be outlawed. But fairness has nothing to do with this because no advantage has been proven in trans kids.
August 1, 2025 at 1:39 PM
There are many real inequities that keep kids, especially girls, out of sports, and yet strangely we never hear the Save Women's Sports crowd talking about those. They're not running youth clinics, or gathering equipment donations, or doing anything to address really obvious barriers. Weird, huh?
Today's beach finds!
July 29, 2025 at 9:04 PM
Today's beach finds!
Reposted by Charlotte Underwood
Never forget, a 13-year study found that protected bike-lanes led to a drastic decline in fatalities for all road users.
ALL ROAD USERS.
And painted bike-lanes? No safety improvement at all.
For sharrows, it’s actually safer to NOT have them.
Via @usa.streetsblog.org @nyc.streetsblog.org
ALL ROAD USERS.
And painted bike-lanes? No safety improvement at all.
For sharrows, it’s actually safer to NOT have them.
Via @usa.streetsblog.org @nyc.streetsblog.org
Separated Bike Lanes Means Safer Streets, Study Says — Streetsblog USA
Cities that build protected lanes for cyclists end up with safer roads for people on bikes and people in cars and on foot, a new study of 12 large metropolises revealed Wednesday.
usa.streetsblog.org
July 16, 2025 at 7:44 PM
Never forget, a 13-year study found that protected bike-lanes led to a drastic decline in fatalities for all road users.
ALL ROAD USERS.
And painted bike-lanes? No safety improvement at all.
For sharrows, it’s actually safer to NOT have them.
Via @usa.streetsblog.org @nyc.streetsblog.org
ALL ROAD USERS.
And painted bike-lanes? No safety improvement at all.
For sharrows, it’s actually safer to NOT have them.
Via @usa.streetsblog.org @nyc.streetsblog.org
Presented some of the work we've been doing @plymuni.bsky.social for the @aquaplan.bsky.social project at #ITRS25!
July 3, 2025 at 2:29 PM
Presented some of the work we've been doing @plymuni.bsky.social for the @aquaplan.bsky.social project at #ITRS25!
First official day of #ITRS25. Heard some great talks on light pollution and eco-engineering, including some from my colleagues at @aquaplan.bsky.social!
July 1, 2025 at 6:50 PM
First official day of #ITRS25. Heard some great talks on light pollution and eco-engineering, including some from my colleagues at @aquaplan.bsky.social!
Found my first dogwhelk eggs today! And perhaps the egg-layer herself?
June 17, 2025 at 4:32 PM
Found my first dogwhelk eggs today! And perhaps the egg-layer herself?
Reposted by Charlotte Underwood
1. The US Transgender Survey has finally been released, and the results are stunning.
- <1% of people are less satisfied after HRT.
- The most common reason for detransition, pausing transition, or stopping transition is transphobia.
The latest from S. Baum.
Subscribe to support our journalism.
- <1% of people are less satisfied after HRT.
- The most common reason for detransition, pausing transition, or stopping transition is transphobia.
The latest from S. Baum.
Subscribe to support our journalism.
Largest Trans Survey Ever: Top Reason Trans People Stop Transitioning Is Transphobia
“In almost every single case, the reason was anti-trans discrimination in the form of pressure to ‘detransition’ from one’s family, friends, or community.”
www.erininthemorning.com
June 11, 2025 at 10:11 PM
1. The US Transgender Survey has finally been released, and the results are stunning.
- <1% of people are less satisfied after HRT.
- The most common reason for detransition, pausing transition, or stopping transition is transphobia.
The latest from S. Baum.
Subscribe to support our journalism.
- <1% of people are less satisfied after HRT.
- The most common reason for detransition, pausing transition, or stopping transition is transphobia.
The latest from S. Baum.
Subscribe to support our journalism.
My greatest mental struggle when riding British rail is wanting to arrive at my destination on time but also wanting my journey to be delayed so I can reclaim some of the exorbitant fare I paid.
June 5, 2025 at 2:39 PM
My greatest mental struggle when riding British rail is wanting to arrive at my destination on time but also wanting my journey to be delayed so I can reclaim some of the exorbitant fare I paid.
Reposted by Charlotte Underwood
NEW from me: China's CO2 emissions fell ~1.6% in the first quarter and have now been flat or down for more than a year. This is the first time on record that emissions are falling due to clean energy growth, not slow power demand.
NEW – Analysis: Clean energy just put China’s CO2 emissions into reverse for first time | @laurimyllyvirta.bsky.social
Read here: buff.ly/6eAcjRU
Read here: buff.ly/6eAcjRU
May 15, 2025 at 5:45 AM
NEW from me: China's CO2 emissions fell ~1.6% in the first quarter and have now been flat or down for more than a year. This is the first time on record that emissions are falling due to clean energy growth, not slow power demand.
If you've ever been curious how scientific publishing became the profit driven mess it is today, you can blame this guy!
@iwriteok.bsky.social tells @adamconover.net about Ghislaine Maxwell's dad, Robert Maxwell. He started his life on a Nazi murder quest and ended it by killing science as a field of endeavor and raiding millions from his company pension plan.
@whysophiewhy.bsky.social
www.iheart.com/podcast/105-...
@whysophiewhy.bsky.social
www.iheart.com/podcast/105-...
May 8, 2025 at 2:44 PM
If you've ever been curious how scientific publishing became the profit driven mess it is today, you can blame this guy!