We've all seen the aftermath at Glastonbury Festival.
Empty cans, food wrappers, abandoned tents and unmentionable waste - it makes for a decidely unpretty picture.
Although Glastonbury made some steps towards being more environmentally friendly this year - including the introduction of new organic toilets - plenty of city and international festivals are making leaps and bounds on the same issue.
At Øyafestivalen [Oya Festival], in Norway, which takes place in August, organisers are attempting to tackle everything from waste disposal, food, greener transport and power supply, leaflets and toilet paper.
Norway has a pretty solid reputation as it aims to ban all petrol-powered cars by 2025 and move away from fossil fuel useage.
Music festivals guide 2016
Music festivals guide 2016
Where: Bansko Ski Resort, Bulgaria When: 12-17 March Price: From £175 Line Up: Âme, Goldie, Nina Kraviz, John Talabot, Lady Leshurr, Craig Charles
2/20 Live At Leeds
Where: Leeds, UK When: 30 April Price: £32.50 Line Up: Jess Glynne, Circa Waves, Mystery Jets, Band of Skulls, We Are Scientists
3/20 Primavera Sound
Where: Barcelona, Spain When: 1-5 June Price: €175 Line Up: Radiohead, LCD Soundsystem, Sigur Rós, PJ Harvey, Tame Impala, Beach House, Suede, The Last Shadow Puppets
4/20 Best Kept Secret
Where: Hilvarenbeek, The Netherlands When: 17-19 June Price: €147.50 Line Up: Beck, Editors, Two Door Cinema Club, Beach House, Bloc Party, Caribou, Half Moon Run
Best Kept Secret Festival
Where: Worthy Farm, Somerset When: 22-26 June Price: £220 Line Up: Coldplay, Muse, Jeff Lynne’s ELO, PJ Harvey, Jess Glynne (TBC)
Where: Copenhagen, Denmark When: 25 June-2 July Price: 2,020 DKK Line Up: LCD Soundsystem, New Order, PJ Harvey, Red Hot Chili Peppers, Foals, Tame Impala, Savages, Skepta, Tenacious D
Simon Frøsig Christensen / Roskilde Festival
7/20 Hideout Festival
Where: Zrce Beach, Croatia When: 26-30 June Price: From £152.90 Line Up: The Martinez Brothers, Joris Voorn, Waze & Odyssey
8/20 Bilbao BBK
Where: Bilbao, Spain When: 7-9 July Price: From £69 Line Up: Arcade Fire, Pixies, Tame Impala, Foals, New Order, Hot Chip, Father John Misty, Years & Years, Wolf Alice
Where: Gdynia, Poland When: 29 July-2 August Price: From €130 Line Up: Bastille, Florence + the Machine, Foals, LCD Soundsystem, Red Hot Chili Peppers, The 1975, The Last Shadow Puppets, Wiz Khalifa
10/20 Electric Love
Where: Plainfeld, Austria When: 7-9 July Price: €119 Line Up: Alesso, Zedd, Tiesto, Chase & Status, Steve Aoki, Knife Party
Where: Ferropolis, Germany When: 15-17 July Price: From €136 Line Up: Two Door Cinema Club, Disclosure, Jamie xx, Sleaford Mods, Skepta, Jamie Woon
Where: Budapest, Hungary When: 10-17 August Price: From €215 Line Up: Bastille, Bloc Party, M83, Sigur Ros, Bring Me the Horizon
Where: Helsinki, Finland When: 12-14 August Price: €165 Line Up: Sia, New Order, The Last Shadow Puppets, Jamie xx, M83, Chvrches, Four Tet, Stormzy, Daughter, The Kills
Flow Festival / Jussi Hellsten
14/20 Rock En Seine
Where: Paris, France When: 26-28 August Price: From €119 Line Up: TBC
Where: Marrakech, Morocco When: 16-18 September Price: From €110 Line Up: Bicep, Derrick May, Tale of Us, Dixon, Dusky, Hunee
Where: Henham Park, Suffolk When: 14-17 July Price: £205.50 Line Up: The Maccabees, The National, New Order, John Grant, Beirut, Father John Misty, Chvrches, Grimes
Where: Robin Hill, Isle of Wight When: 8-11 September Price: £190 Line Up: The Cure, Major Lazer, Hot Chip, Fatboy Slim, Craig David, Years & Years, Wolf Alice, Tourist, Katy B
18/20 Isle of Wight
Where: Newport, Isle of Wight When: 9-12 June Price: From £186 Line Up: Queen + Adam Lambert, Stereophonics, Faithless, Iggy Pop, Adam Ant, Buzzcocks, Sigma, Jess Glynne
Where: Victoria Park, London When: 17 July Price: From £54 Line Up: Sigur Rós, Caribou, Lianne La Havas, Nathaniel Rateliff & the Night Sweats
20/20 End of the Road
Where: Larmer Tree Gardens When: 2-4 September Price: £195 Line Up: Joanna Newsom, The Shins, Animal Collective, Bat for Lashes, Teenage Fanclub, Devendra Banhart, Savages, Cat's Eyes
An Øya festival spokesperson explains: "Since 2009 we´ve used only sustainable electricity (in Norway most electricity is made from hydrolic power) - as apposed to the fossil fuel-run generators most outdoor-events use.
"To get there, we paid for the necessary logistics to be built out in our event site, Middelalderparken, and when we moved to Tøyen, we made an similar effort to make enough electricity available in the park. When we switched from generators to electricity, we cut our energy use by 80 percent! We also made a huge cut in our carbon emissions.
"All of the festival waste is hand-sorted and recycled in 16 categories, which makes it possible for almost 70 percent of our waste to be reused - saving us 40 000 tonnes of CO2 just in 2015 (which translates to the yearly use of nearly 15 000 cars!)."
Øya was the first Norwegian festival to get the gold sertification of organic food, by serving 97% organic food to around 2,500 volunteers, 500 artists and crews and 70,000 visitors.
They're trying to cut down on the amount of meat eaten at the festival, demanding at least 50% meat-free options on menus.
"This year we´re working specifically with food waste - trying to limit ours and our restaurant´s waste, and creating awareness of the problems surrounding food waste for our audiences. After the festival, all of our surpuls food is donated to Matsentralen, who distributes it to food shelters and others in need in Oslo," the festival spokesperson told The Independent.
"Almost a third of all food produced in the world, ends up in a waste bin - even thought 868 million people are starving. Had we saved 30% of the food we throw away, we could feed all the hungry in the world. This would also enable us to produce less food, and save huge amounts of CO2 emissions. We hope we can teach our audience and volunteers to treat their food with more care and to take these habits with them home again after the festival."
Oya Festival takes place from 9-13 August - see the website for more informationReuse content