内容摘要：The spiral design represents a "constant loop of adversity", the artist said.

The spiral design represents a "constant loop of adversity", the artist said.

"Next to our plant that produces the soap and dog food, someone else has a water purification plant and we use the water that plant cannot purify, its waste so to say, for our water cooling system," he explains.The idea of teaming up with Walmart, Mr Pineda says, is "to sell the dog food and soap we have refined from their waste at Walmart".

"They could profit from their own waste and also see the economic value behind circular economies, " he tells the BBC.At 15 lempiras (£0.45) per bar of soap, the project makes a monthly revenue of over 106,000 Lempiras (£3,194.70), which excludes fixed costs like salaries, commission and distribution.Mr Pineda emphasises that "the money doesn't stay with us". "We just help with the implementation of the project and as soon as it's up and running we seek new opportunities," he says.

The recycling of cooking oil is just one several projects running simultaneously at Sustenta.The organisation is comprised of young people, all under 30 and averaging 23 years of age, and their youthful enthusiasm and impatience with established ways of doing things has been key to their approach.

"We started as a young group that was sick of the regular ways large institutions handle issues with climate change and the environment," Mr Pineda says.

"We want to create actual solutions and not sit around only talking about what could be done."The details here are still to be confirmed, but the winners would be those young people from both the UK and EU who would be able to work and study more easily across Europe and Great Britain. Other youth mobility schemes have focused on people aged 18 to 30.

However, the impact of what is being called a "youth experience scheme" could be uneven.Before Brexit more young people from the EU came to the UK than went the other way.

And, remember, Sir Keir has pledged to "significantly" reduce immigration levels in the coming years. So there's a big question mark on what impact a UK-EU scheme could have on UK immigration levels.Madeleine Sumption from Oxford University's Migration Observatory told BBC Verify that a scheme would likely increase net migration in the short term, as new participants arrive.