Sundays, 11am - 2pm: Sumac Sunday Brunch

Every Sunday - £5 at Sumac Centre, 245 Gladstone St NG7 6HX. Details on Veggies website.

Fri 29 Aug, 7pm: Critical Mass Bike Ride

Meet 6.45pm outside the Bell Inn, Old Market Square NG1 6HL for bike ride from 7pm to 8pm. (Last Friday of the month.) See nottscriticalmass on Facebook.

Sat 30 Aug, 10.30am-4pm: Youth Gathering, Heanor

Teach the Future Youth Gathering at the Young People's Forest at Mead, Shipley Country Park. For young people 16-25 (under 16s with parent/guardian). Supported by Woodland Trust. Free bus from Derby Rail Station at 10am. Free (£6.13 if waged). Register on Eventbrite.

Sun 31 Aug, 5-6.30pm: Nottingham Climate Choir

New choir will be rehearsing monthly (last Sunday of the month starting 29 June) at Queen's Walk Community Centre, Meadows NG2 2DF. All welcome, regardless of experience. Contact Helen at Nottingham @ climatechoirmovement.org

Wed 3 Sep, 7.30pm: EMCCA Climate Coalition

Online meeting for environmental campaign groups in Nottinghamshire and Derbyshire to ensure the new MetroMayor Claire Ward prioritises action on the climate and nature emergencies. (First Wednesdays.) Register on Action Network.

Tue 9 Sep, 7.30pm: Nottm FoE online

Nottingham Friends of the Earth monthly meeting: 7.30pm, second Tuesday of the month. EMAIL nottinghamfoe @ hotmail.com for information.

Wed 10 Sep, 7.30pm: NOGs monthly meeting: AGM

Monthly meeting by Nottingham Organic Gardeners at Sherwood United Reform Church, 1 Edwards Lane NG5 3AA (2nd Wednesdays). £2 (free for members). Details on Facebook.

• Wed 8 Oct - Local food growing in the USA
• Wed 12 Nov - History of the potato

Sat 13 Sep, 10am - 2.30pm: Sherwood Vegan Market

Sherwood Vegan Market, 10am - 2.30pm, 2nd Saturdays, Sherwood United Reformed Church, Edwards Lane NG5 3AA. Details on website.

Sat 13 Sep, 2-5pm: Nottingham Fixers Repair Cafe

At Sherwood Methodist Church, 4 Devon Drive NG5 2EN. Learn how to fix things instead of throwing them away. For electrical items you need to book. (Further date: 8 Nov). Further info on Facebook.

Sun 14 Sep, noon - 6pm: Nottingham Green Festival

Nottingham Green Festival: 2nd Sunday in September, The Arboretum, Waverley St NG7 4HF. Details: Green Festival website. Planning meetings now held on second Tuesdays at 6pm at Sumac Centre, 245 Gladstone St NG7 6HX. Details on Sumac website.

Wed 17 Sep, 7pm: Better Buses East Midlands

Online campaign meeting. Details: transitionchesterfield @ yahoo.co.uk

Sat 20 Sep: Make Them Pay Rally, London

A major demo in London supported by a number of NGOs, trade unions, etc, calling for big oil and billionaires to pay for a just transition to tackle climate change and inequality together. With three main demands: Tax the super-rich; Protect workers, not billionaires; Make polluters pay. Details on Website.

• Coach leaves Nottingham (Gregory Boulevard Park & Ride) at 8am, also picks up in Leicester. Tickets £16.80 - book on Billetto.