Leana Hosea
@leanahosea.bsky.social
Founding environmental journalist of nonprofit @WATERSHED_i
http://watershedinvestigations.com
Documentary filmmaker: ‘Thirst For Justice’, https://vimeo.com/ondemand/thirstforjustice
Formerly BBC (18 yrs) & Knight Wallace Fellow (2016).
http://watershedinvestigations.com
Documentary filmmaker: ‘Thirst For Justice’, https://vimeo.com/ondemand/thirstforjustice
Formerly BBC (18 yrs) & Knight Wallace Fellow (2016).
Deregulation - the dark path to poison in your lungs, excrement in your rivers, carcinogens in your food.
A growing movement in Brussels is spreading the message that asking business to follow rules leads to economic death. They're working hard to destroy EU environmental + chemical protections.
A growing movement in Brussels is spreading the message that asking business to follow rules leads to economic death. They're working hard to destroy EU environmental + chemical protections.
November 13, 2025 at 12:28 PM
Deregulation - the dark path to poison in your lungs, excrement in your rivers, carcinogens in your food.
A growing movement in Brussels is spreading the message that asking business to follow rules leads to economic death. They're working hard to destroy EU environmental + chemical protections.
A growing movement in Brussels is spreading the message that asking business to follow rules leads to economic death. They're working hard to destroy EU environmental + chemical protections.
"the fossil fuel industry has been lobbying the climate negotiations for 30 years now"
~ a flotilla of Indigenous people travels 3000km to ensure their voices are also heard at COP30. See the full story at:
youtube.com/shorts/RAJRO...
~ a flotilla of Indigenous people travels 3000km to ensure their voices are also heard at COP30. See the full story at:
youtube.com/shorts/RAJRO...
November 12, 2025 at 5:39 PM
"the fossil fuel industry has been lobbying the climate negotiations for 30 years now"
~ a flotilla of Indigenous people travels 3000km to ensure their voices are also heard at COP30. See the full story at:
youtube.com/shorts/RAJRO...
~ a flotilla of Indigenous people travels 3000km to ensure their voices are also heard at COP30. See the full story at:
youtube.com/shorts/RAJRO...
"We should no longer be making PFAS"
Water UK's David Henderson tells Nick Robinson removing PFAS from water sources is so hard we should talk about a ban on forever chemicals, not a clean up.
Our story on the DWI ordering water firms to act on PFAS in water sources made the Today Programme.
🧵
Water UK's David Henderson tells Nick Robinson removing PFAS from water sources is so hard we should talk about a ban on forever chemicals, not a clean up.
Our story on the DWI ordering water firms to act on PFAS in water sources made the Today Programme.
🧵
November 3, 2025 at 7:41 PM
"We should no longer be making PFAS"
Water UK's David Henderson tells Nick Robinson removing PFAS from water sources is so hard we should talk about a ban on forever chemicals, not a clean up.
Our story on the DWI ordering water firms to act on PFAS in water sources made the Today Programme.
🧵
Water UK's David Henderson tells Nick Robinson removing PFAS from water sources is so hard we should talk about a ban on forever chemicals, not a clean up.
Our story on the DWI ordering water firms to act on PFAS in water sources made the Today Programme.
🧵
Our story on the Drinking Water Inspectorate ordering water firms to act on PFAS in drinking water sources featured on @bbc5live.bsky.social.
As @esmestallard.bsky.social explains, once PFAS is in water, it's incredibly difficult to remove, which is why many say prevention is better than cure.
🧵 1
As @esmestallard.bsky.social explains, once PFAS is in water, it's incredibly difficult to remove, which is why many say prevention is better than cure.
🧵 1
November 3, 2025 at 5:19 PM
Our story on the Drinking Water Inspectorate ordering water firms to act on PFAS in drinking water sources featured on @bbc5live.bsky.social.
As @esmestallard.bsky.social explains, once PFAS is in water, it's incredibly difficult to remove, which is why many say prevention is better than cure.
🧵 1
As @esmestallard.bsky.social explains, once PFAS is in water, it's incredibly difficult to remove, which is why many say prevention is better than cure.
🧵 1
Our story that the Drinking Water Inspectorate has ordered 7 water companies to take action on PFAS in untreated drinking water sources across England featured on the Today Programme, BBC Radio 4, this morning. More via BBC online:
www.bbc.com/news/article...
www.bbc.com/news/article...
November 3, 2025 at 12:41 PM
Our story that the Drinking Water Inspectorate has ordered 7 water companies to take action on PFAS in untreated drinking water sources across England featured on the Today Programme, BBC Radio 4, this morning. More via BBC online:
www.bbc.com/news/article...
www.bbc.com/news/article...
Less immediately obvious on the map but still critically important is PM 2.5 pollution from fossil fuel + wood burning power stations - basically, burning stuff, whether in a power station, fireplace, bonfire, internal combustion engine = air pollution.
October 23, 2025 at 9:15 AM
Less immediately obvious on the map but still critically important is PM 2.5 pollution from fossil fuel + wood burning power stations - basically, burning stuff, whether in a power station, fireplace, bonfire, internal combustion engine = air pollution.
PM 2.5 pollution contributes to 4.9million deaths a year globally. You can filter our Watershed Pollution Map to show PM 2.5 emissions in UK + it's clear petrol vehicles, oil rigs, wood burners + shipping are making big contributions to this type of pollution.
share.google/ypDFsinf0dJL...
share.google/ypDFsinf0dJL...
October 23, 2025 at 9:06 AM
PM 2.5 pollution contributes to 4.9million deaths a year globally. You can filter our Watershed Pollution Map to show PM 2.5 emissions in UK + it's clear petrol vehicles, oil rigs, wood burners + shipping are making big contributions to this type of pollution.
share.google/ypDFsinf0dJL...
share.google/ypDFsinf0dJL...
The 2nd highest risk factor for dying early, after high blood pressure, is high air pollution. A key step in reducing air pollution is to stop burning stuff: wood, fossil fuels - whether it's in a car engine, a wood burner, or a power station. Better public transport, walking + cycling routes vital.
October 23, 2025 at 8:52 AM
The 2nd highest risk factor for dying early, after high blood pressure, is high air pollution. A key step in reducing air pollution is to stop burning stuff: wood, fossil fuels - whether it's in a car engine, a wood burner, or a power station. Better public transport, walking + cycling routes vital.
Factor in how much of Newton Abbot is predicted to be below the annual flood level by 2050, and it becomes even more clear that we cannot afford to damage any natural resource that offers flood protection.
coastal.climatecentral.org/map/13/-3.59...
coastal.climatecentral.org/map/13/-3.59...
October 20, 2025 at 12:59 PM
Factor in how much of Newton Abbot is predicted to be below the annual flood level by 2050, and it becomes even more clear that we cannot afford to damage any natural resource that offers flood protection.
coastal.climatecentral.org/map/13/-3.59...
coastal.climatecentral.org/map/13/-3.59...
Our Watershed Pollution Map. Areas shaded blue are currently at risk of flooding. I've circled (wonkily) the wider region around Wolborough Fen. Every little bit of wetland we harm, river basins lose more ability to hold water upriver, away from homes.
watershedinvestigations.com/home/find-ou...
watershedinvestigations.com/home/find-ou...
October 20, 2025 at 12:19 PM
Our Watershed Pollution Map. Areas shaded blue are currently at risk of flooding. I've circled (wonkily) the wider region around Wolborough Fen. Every little bit of wetland we harm, river basins lose more ability to hold water upriver, away from homes.
watershedinvestigations.com/home/find-ou...
watershedinvestigations.com/home/find-ou...
In 2024, we returned to the site to make a film with @endsreport.com, TOXIC featuring Feargal Sharkey + @nataliegreenpeer.bsky.social. Sometime after this, the EA + UK Health Security Agency finally announced an investigation of PFAS pollution around the site.
4
www.endsreport.com/toxic
4
www.endsreport.com/toxic
October 19, 2025 at 1:03 PM
In 2024, we returned to the site to make a film with @endsreport.com, TOXIC featuring Feargal Sharkey + @nataliegreenpeer.bsky.social. Sometime after this, the EA + UK Health Security Agency finally announced an investigation of PFAS pollution around the site.
4
www.endsreport.com/toxic
4
www.endsreport.com/toxic
Back in Blighty, sampling we carried out with river groups, @sascampaigns.bsky.social, + tested by @alistairboxall.bsky.social in York, found antimicrobial resistance genes at popular English bathing sites.
9/10
www.itv.com/news/2024-12...
9/10
www.itv.com/news/2024-12...
October 18, 2025 at 3:40 PM
Back in Blighty, sampling we carried out with river groups, @sascampaigns.bsky.social, + tested by @alistairboxall.bsky.social in York, found antimicrobial resistance genes at popular English bathing sites.
9/10
www.itv.com/news/2024-12...
9/10
www.itv.com/news/2024-12...
Even if sewage is treated twice, as in English towns and cities, a lot of those meds + bacteria survive the treatment. Essentially, we're discharging meds, antibiotics, cleaning products + bacteria all together into rivers - perfect conditions for antimicrobial resistance to develop.
3/10
3/10
October 18, 2025 at 3:40 PM
Even if sewage is treated twice, as in English towns and cities, a lot of those meds + bacteria survive the treatment. Essentially, we're discharging meds, antibiotics, cleaning products + bacteria all together into rivers - perfect conditions for antimicrobial resistance to develop.
3/10
3/10
And, yes, wildlife, we need to stop washing nitrate + phosphate into a river where salmon are perilously close to becoming locally extinct.
October 8, 2025 at 5:58 PM
And, yes, wildlife, we need to stop washing nitrate + phosphate into a river where salmon are perilously close to becoming locally extinct.
Nitrogen dioxide pollution is strongly associated with breathing + heart conditions. Continuing to lower levels of NO2 is vital to protect people's health, decrease pressure on the NHS + ensure our children grow up breathing clean air.
6/6
6/6
October 1, 2025 at 12:28 PM
Nitrogen dioxide pollution is strongly associated with breathing + heart conditions. Continuing to lower levels of NO2 is vital to protect people's health, decrease pressure on the NHS + ensure our children grow up breathing clean air.
6/6
6/6
The biggest reductions in nitrogen oxide emissions have occurred in energy generation + passenger cars, although emissions from all sectors have shrunk. Continuing the switch to renewables + improving public transport, walking + cycling routes could continue this downward trajectory.
5/6
5/6
October 1, 2025 at 12:28 PM
The biggest reductions in nitrogen oxide emissions have occurred in energy generation + passenger cars, although emissions from all sectors have shrunk. Continuing the switch to renewables + improving public transport, walking + cycling routes could continue this downward trajectory.
5/6
5/6
The report states the two highest mean recordings are for central London + the area around Heathrow airport. Yet another reason to question the wisdom of expanding the airport further.
4/6
uk-air.defra.gov.uk/assets/docum...
4/6
uk-air.defra.gov.uk/assets/docum...
October 1, 2025 at 12:28 PM
The report states the two highest mean recordings are for central London + the area around Heathrow airport. Yet another reason to question the wisdom of expanding the airport further.
4/6
uk-air.defra.gov.uk/assets/docum...
4/6
uk-air.defra.gov.uk/assets/docum...
Here's our Watershed Pollution Map adjusted to show nitrogen oxide pollution (a precursor to nitrogen dioxide). You can see it's higher along major roads, oil rigs, shipping lanes + the deeper you get into town centres.
3/6
watershedinvestigations.com/home/find-ou...
3/6
watershedinvestigations.com/home/find-ou...
October 1, 2025 at 12:28 PM
Here's our Watershed Pollution Map adjusted to show nitrogen oxide pollution (a precursor to nitrogen dioxide). You can see it's higher along major roads, oil rigs, shipping lanes + the deeper you get into town centres.
3/6
watershedinvestigations.com/home/find-ou...
3/6
watershedinvestigations.com/home/find-ou...
The report explains roadside nitrogen dioxide levels are elevated even if you live in the countryside but has been reducing in all areas.
A major source of NO2 pollution is burning fossil fuels, wood or biofuels whether in a power station, car, lorry, ship, or methane flaring.
2/6
A major source of NO2 pollution is burning fossil fuels, wood or biofuels whether in a power station, car, lorry, ship, or methane flaring.
2/6
October 1, 2025 at 12:28 PM
The report explains roadside nitrogen dioxide levels are elevated even if you live in the countryside but has been reducing in all areas.
A major source of NO2 pollution is burning fossil fuels, wood or biofuels whether in a power station, car, lorry, ship, or methane flaring.
2/6
A major source of NO2 pollution is burning fossil fuels, wood or biofuels whether in a power station, car, lorry, ship, or methane flaring.
2/6
IEA data indicates renewables use far less water than coal or oil.
9/10
9/10
September 27, 2025 at 1:04 PM
IEA data indicates renewables use far less water than coal or oil.
9/10
9/10
As a country, we urgently need to be developing water efficient industrial, building + farming processes.
8/10
8/10
September 27, 2025 at 1:04 PM
As a country, we urgently need to be developing water efficient industrial, building + farming processes.
8/10
8/10
Building homes that are water efficient, using water efficient devices in our homes - all these things can reduce our water use without us really noticing the difference:
5/10
podcasts.apple.com/gb/podcast/h...
5/10
podcasts.apple.com/gb/podcast/h...
September 27, 2025 at 1:04 PM
Building homes that are water efficient, using water efficient devices in our homes - all these things can reduce our water use without us really noticing the difference:
5/10
podcasts.apple.com/gb/podcast/h...
5/10
podcasts.apple.com/gb/podcast/h...
We currently lose 3 billion litres of water a day from leaking pipes. Fixing these could get us 75% of the way to preventing the water shortfall. The £500mn for the desalination plant could have funded a lot of pipe repairs.
4/10
podcasts.apple.com/gb/podcast/h...
4/10
podcasts.apple.com/gb/podcast/h...
September 27, 2025 at 1:04 PM
We currently lose 3 billion litres of water a day from leaking pipes. Fixing these could get us 75% of the way to preventing the water shortfall. The £500mn for the desalination plant could have funded a lot of pipe repairs.
4/10
podcasts.apple.com/gb/podcast/h...
4/10
podcasts.apple.com/gb/podcast/h...
Julia King tells us, climate change is set to bring us more rainfall in winter + drier, hotter summers, + we need to be storing water during those wet winters for the dry summers.
2/10
podcasts.apple.com/gb/podcast/h...
2/10
podcasts.apple.com/gb/podcast/h...
September 27, 2025 at 1:04 PM
Julia King tells us, climate change is set to bring us more rainfall in winter + drier, hotter summers, + we need to be storing water during those wet winters for the dry summers.
2/10
podcasts.apple.com/gb/podcast/h...
2/10
podcasts.apple.com/gb/podcast/h...
Better drainage, filtration systems, public transport, walking + cycling routes, cleaning roads - just some of the ways we can stop this filth entering our rivers every time it rains. More information on preventing runoff at: www.stormwatershepherds.org.uk/2022/04/25/t...
September 23, 2025 at 11:56 AM
Better drainage, filtration systems, public transport, walking + cycling routes, cleaning roads - just some of the ways we can stop this filth entering our rivers every time it rains. More information on preventing runoff at: www.stormwatershepherds.org.uk/2022/04/25/t...