Posts

The London Environment Strategy - overview

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  The Mayor published the London Environment Strategy (LES) as a draft on 11 Aug 2017, open for consultation until 17 Nov. This post summarises the section relating to Green Infrastructure. I’ve given more details on this section in an extract . Links to the GLA website are at the end of this post. I will publish comments on the strategy in a later post. Introduction The Mayor sets out a bold ambition - “ to make London the greenest global city ” - which means that this strategy could be important for those who care about London’s wildlife and the green spaces that support it. The LES sets a direction for London to be greener, cleaner and ready for the future. It is an integrated strategy that covers air quality, waste, noise, climate change mitigation and adaptation - as well as green spaces and biodiversity. Although 47% of London is classified as green or blue open space, almost half of Londoners have poor access to parks. Added to which, Councils now have...

What's great about the Great North Wood?

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You could argue that the Great North Wood is no longer great, was never in the north, and is barely a wood anymore. But that would be to do it a disservice. The Great North Wood is a large area (over 50km2) of south London stretching from Selhurst in the south to Deptford near the Thames in the north. It got its name from the woodland that lay to the north of the large ecclesiastical town of Croydon. Modern-day Dulwich Woods (source: Wikipedia) Throughout the Middle Ages it had a history of strong ownership by local people and was managed for timber (including shipbuilding), charcoal, tannin (for the Bermondsey leather making industries) and firewood. The Industrial Revolution and the Enclosure Acts from the late 18th Century led to the Great North Wood losing its economic validity, and much of it was partitioned and sold off for housing development. This landscape straddles five current London boroughs - Bromley, Croydon, Lewisham, Southwark and Lambeth. Now, t...

Butterflies under our noses

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Spring butterflies in south London London is viewed by many as a wildlife desert, but this is far from the truth. In fact, there is wildlife right under our noses, if we only care to look. During March and April 2017, I made visits to green spaces in Lambeth, Southwark and Wandsworth - all densely populated inner London boroughs. Some of these sites - like Stave Hill Ecological Park in Rotherhithe, Nunhead Cemetery near Peckham and Battersea Park are Local Nature Reserves. Others, like Burgess Park in Southwark, are "ordinary" urban parks. I was able to identify 11 species of butterfly in March - Comma, Brimstone, Green-veined White, Small White, Large White, Orange Tip, Speckled Wood, Holly Blue, Red Admiral, Peacock and Small Tortoiseshell.  In fact the commonest butterfly across these sites in March was the Comma Polygonia c-album , which is having a good year.  And the Holly Blue Celastrina argiolus could be seen almost anywhere where there was iv...

Neonicotinoids and insects

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The controversy over the effect of pesticides on bees and other insects has been rumbling along for years. This is especially the case for neonicotinoids - or “neonics” - which are sold under trade names including  acetamiprid, clothianidin, imidacloprid, thiacloprid and thiamethoxam. Imidacloprid is the most widely used insecticide in the world; you will even find it in anti-flea treatments for domestic cats. These are powerful neurotoxins, synthetic variants on nicotine, that are applied to wheat and oilseed rape seeds before sowing. Neonics work systemically. As the plant grows, it absorbs the seed coating through its roots and the chemical spreads throughout the plant, protecting it from pests. But this also means that the toxins get into the pollen and nectar of flowering crops. This concern led to the EU banning the use of neonics on flowering crops from December 2013. However, in a pre-Brexit move, Liz Truss, then Secretary of State for the Environment, overturned this...