The @theriverstrust.bsky.social Big River Watch is back now for its Autumn campaign 19-25th September. Here’s Lucy our catchment manager using the app to assess the River Misbourne beside the Visitor Centre in #Denham. theriverstrust.org/take-action/...

Grants of up to £1,000 Available for Young People to Improve Local Green Spaces The @linneansociety.bsky.social Our Local Nature Grant Scheme offers young people across the UK the chance to lead projects that connect their communities with the natural world. www.linnean.org/the-society/...

Invasive Non-Native Species can look innocuous, even pretty, but they cost the UK over £4 Billion every year though direct damage and loss of habitat for native species. This latest threat to our local rivers is American Skunk Cabbage @invasiveSP www.youtube.com/shorts/fmWDe...

Great to see this Himalayan balsam pulled from the River Colne near #LondonColney Cllr Matt Fisher donned his waders and got stuck in clearing this insidious non-native invasive species with the help of these hard working #volunteers @LondonColneyPaC #StAlbans @invasiveSP

Biofilm analysis sampling session in London Colney Village #StAlbans working with @cranfielduni.bsky.social part of ongoing work with the ColneCAN water quality working group. Erin Doyle & Mithil Mahale Cranfield, Tony Booker & Cllr Matt Fisher. @BankfullScience www.cranfield.ac.uk/press/news-2...

Cranfield University is working with the River Colne Catchment Action Network (ColneCan) on a UK Government-funded project to develop a novel way to diagnose the causes of poor ecological health in rivers. @cranfielduni.bsky.social @BankfullScience www.cranfield.ac.uk/press/news-2...

The @theriverstrust.bsky.social Big River Watch is back for its Autumn campaign 19-25th September Prepare now: download the app and do a few practice recordings on your favourite river reaches.. We’d love to get a good set of data across the whole Colne Catchment! theriverstrust.org/take-action/...

Extended Riverfly Training on the Chess 14 October 2025 Less than a month to book. This free event is for tor those who are already confident in Riverfly monitoring and would like to learn how to identify more species.  https://bit.ly/45cXSN8 See you there!

‼️ One month to the Twilight bat safari on the Misbourne‼️ 27 September 18:30 Don't miss the opportunity to join this event with the CCSP team and WildAmersham where we will be using bat detectors and explore the nocturnal wildlife of the riparian habitat. Families welcome!

The Visitor Centre in #Denham is now temporarily Closed. Please rest assured that the Colne Valley Park continues to offer countless ways to get out and explore your local countryside.

Who’d like a map that shows the boundaries of the Colne catchment, Colne Valley Regional Park and those of the Chilterns National Landscape? You’re welcome 😊 @colnevalley.bsky.social @chilternstreams.bsky.social @chilternsnl.bsky.social @vervalleysoc.bsky.social

The @theriverstrust.bsky.social Big River Watch is back for its Autumn campaign 19-25th September Prepare now: download the app & do some practice recordings on your favourite river reaches.. We would love to get a good set of data across the whole Colne Catchment! theriverstrust.org/take-action/...

. @gwksouth.bsky.social are looking for an enthusiastic Rivers Project Officer to deliver a variety of river enhancement, monitoring and citizen science-based community engagement across the Colne Catchment. #jobsearch #greenjobs #conservation #hirefriday www.colnevalleypark.org.uk/job/rivers-p...

@CanalRiverTrust are leading a litter pick on the #Slough Arm of the Grand Union Canal at 10:30am on Sunday 7th September. The Friends of Slough Canal are also joining. If you would like to #volunteer to help out, they would be very glad to see you volunteer.canalrivertrust.org.uk/opportunitie...

We have recently been carrying out work to eradicate an invasive non native species with the unlikely name of skunk cabbage, from Hardings Row #NatureReserve #Iver Heath and on the River Alderbourne. With thanks to @AffinityWater and NEP Biodiversity Group www.colnevalleypark.org.uk/skunk-cabbag...

The @envagency.bsky.social routinely measure and monitor the environment to assess the water situation across the #Hertfordshire and North #London Area. See their July 25 Report here www.gov.uk/government/p... Pic shows River Ash, downstream of Much Hadham

A great recce yesterday on River Colne / GUC / wet woodland site at Troy Lake with Matthew Mountain @gwksouth.bsky.social and @wildtrouttrust.bsky.social scoping out bank stabilisation works... #WestHyde #Harefield @hertscc.bsky.social

It's moments like these that keep us going - a water vole on the #RiverVer, on a recent summer evening. We love our chalkstream!

A final #BalsamBash of the season on the #RiverVer supported by 29 of our volunteers. Thanks to one and all, we've combed every inch of the infested banks at least twice. We'll be ready again in 2026! #INNS @chilternstreams.bsky.social @colnecan.bsky.social

HSE Chemicals Legislative Reform Proposals The UK Health and Safety Executive (HSE) is consulting on pivotal legislative reforms to the UK's chemicals framework. @H_S_E @theriverstrust.bsky.social Please respond. Deadline for response 18 August consultations.hse.gov.uk/hse/chemical...

The Chilterns Chalk Streams Project has secured £1 million towards the ‘Mending the Misbourne’ programme. Thank you to the many partners who worked with us to develop the R. Misbourne catchment plan. Funding means we can start to put plans into action! @chilternsnl.bsky.social

As we move into late summer the effects of the dry year are beginning to show in the headwaters of chalk streams like the Misbourne here at Missenden Abbey Park.

Citizen scientists needed. Help us learn more about local chalk streams and monitor the changes which are taking place. No experience needed. Full training is given and you will be supported by staff or members of local groups. More info -

Thames Water: advisers appointed to plan for company’s potential collapse www.theguardian.com/business/202... @theguardian.com

Another load of plastic, collected by the @colnevalley.bsky.social green team, being loaded up by Tony Booker ready to go to the amazing ReAP. ReAP #recycle plastics collected from aquatic ecosystems such as rivers; to reduce the amount of plastic waste, for a cleaner and healthier world.

If you live in #StAlbans #Amersham #Uxbridge or other parts of #Herts #Bucks & #London you may think the impact of #HeathrowExpansion is remote. But building a runway over 5 rivers will harm the connection for fish & otters between the #Thames & #Chilterns www.colnevalleypark.org.uk/catastrophic...

We have recently been carrying out work to eradicate an invasive non native species with the unlikely name of skunk cabbage, from Hardings Row #NatureReserve #Iver Heath and on the River Alderbourne. With thanks to @AffinityWater and NEP Biodiversity Group www.colnevalleypark.org.uk/skunk-cabbag...

Last Thursday, we had a wonderful Geology Day at Northmoor Hill Wood in #Denham. It was a real pleasure to see people of all ages from our local communities learning about their local woods from the experts at the Bucks Geology Group. #FestivalFortnight

Two proposals have been put forward for a THIRD runway at Heathrow. Both will devastate communities and sever ecological connectivity between the Thames and the Chilterns across the Colne river catchment @colnecan.bsky.social – an area of 1,000km2 www.colnevalleypark.org.uk/catastrophic...

Rewilding group to assess possible return of white storks to #London @citizenzoo.bsky.social to map habitats in the capital and consult boroughs and the public about reintroduction of the birds @theguardian.com www.theguardian.com/environment/...

World in $1.5tn ‘plastics crisis’ hitting health from infancy to old age, report warns Plastic production has increased more than 200 times since 1950 and hits health at every stage from extraction to disposal, says review in @thelancet.com @theguardian.com www.theguardian.com/environment/...

Government publishes plan to address presence of chemicals from pet flea and tick treatments in UK waterways @GOVUK @theriverstrust.bsky.social www.gov.uk/government/n...

HSE Chemicals Legislative Reform Proposals The UK Health and Safety Executive (HSE) is consulting on pivotal legislative reforms to the UK's chemicals framework. @H_S_E @theriverstrust.bsky.social Please respond. Deadline for response 18 August consultations.hse.gov.uk/hse/chemical...

Want to import toxic chemicals into Britain with scant scrutiny? Go right ahead Opinion Piece by @georgemonbiot.bsky.social in the @theguardian.com Government consultation on deregulating chemicals aims to reduce “costs to business”. www.theguardian.com/commentisfre...

Cranfield University is working with the River Colne Catchment Action Network (ColneCan) on a UK Government-funded project to develop a novel way to diagnose the causes of poor ecological health in rivers. @cranfielduni.bsky.social @BankfullScience www.cranfield.ac.uk/press/news-2...

Eels can’t take flights back to the Sargasso, so this Heathrow expansion seems pretty bad

One of the most under-reported effects of #HeathrowExpansion is its concreting over of 4 rivers into 2km-long tunnels under the runway and the diversion of a fifth through a landfill site. www.colnevalleypark.org.uk/heathrow-pos...

Heathrow’s misleading visualisation. In fact building a third runway over 1200 hectares of green belt, 2 villages, 5 rivers and the M25 will be catastrophic and unimaginably disruptive for the environment and people www.colnevalleypark.org.uk/heathrow-pos... #HeathrowExpansion @NoR3Coalition

Do you know what a long way Eels migrate? They come 3000 miles from the other side of the Atlantic to Europe and then trek all the way back again to breed. But when they are journeying along our rivers, what happens if someone puts an airport in the way? www.colnevalleypark.org.uk/an-eels-tale/

Antibacterial ‘biocides’ contained in many household products are being washed into our waterways and could result in an increase in resistant superbugs inews.co.uk/news/environ... @tombawden.bsky.social @theipaper.com @theriverstrust.bsky.social @wclnews.bsky.social

Wasp Spider @maplelodgersrve.bsky.social Photo by Paul Davis @hertswildlifetrust.bsky.social @hnhsoc.bsky.social @colnevalley.bsky.social @colnecan.bsky.social #spiders

The draft #Hertfordshire Local Nature Recovery Strategy has been published and is open for public consultation. Please read and respond with your feedback before Monday 8th September hertfordshire.gov.uk/about-the-co... @hertscc.bsky.social @hertswildlifetrust.bsky.social

Over the last week and a bit we have been shining a light on the Chess Valley Farmer Cluster, celebrating the successes of the last 2 years. Thank you to all those involved to date. We look forward to sharing more updates with you in future, as the Farmer Cluster delivers more Nature Recovery!

Why monitor Water Voles? 🔍Regular surveys help us: 📶Track population health 🔴Spot threats early (like invasive mink) 🍃Improve river habitats 🎯Measure the success of restoration projects This week the CCSP team have been out Water Vole monitoring in #Chesham on the #RiverChess.

Extended Riverfly Training 14 October 2025 This free event is for tor those who are already confident in Riverfly monitoring and would like to learn how to identify more species. Book now!

Do you want to know how much rain fell in the #Herts and North #London Area during June or how high the river flows were? Pic shows River Ash (Herts) at Much Hadham @envagency.bsky.social www.gov.uk/government/p...

Last chance to apply: Expires 15/07 @gwksouth.bsky.social are looking for a Rivers Technical Specialist to develop and deliver rivers and wetlands projects. Would you like to work in an office in the middle of a country park beside a chalk stream? #hiring www.colnevalleypark.org.uk/job/rivers-t...

Job opportunity alert! @gwksouth.bsky.social are looking for a Rivers Technical Specialist to develop and deliver rivers and wetlands projects. Would you like to work in an office in the middle of a country park beside a chalk stream? #hiring www.colnevalleypark.org.uk/job/rivers-t...

Care and attention was devoted to the #RiverVer last Friday, with the help of some brilliant corporate volunteers from AMD. Himalayan Balsam was removed and waders donned waders for the first time to thin the overhead willow canopy. @chilternstreams.bsky.social @colnecan.bsky.social

Birch Shieldbug (Elasmostethus interstinctus). Photo by Paul Davis. @hertswildlifetrust.bsky.social @hnhsoc.bsky.social @colnevalley.bsky.social @colnecan.bsky.social @royentsoc.bsky.social #insect #shieldbug #insectweek