Will we one day be opening up old landfill sites to mine products that could have been recycled but weren't?
Predictions from environmental solutions organisation ADAS suggest we will.
In a campaign to celebrate its 35th birthday, ADAS has asked many of its specialists to predict what the environmental world will look like in 35 years time in 2040.
ADAS chief executive Steve Collier said: "We have had enormous fun with these predictions - some of which push current thinking and knowledge to the limits. But the results are hard-hitting in that they not only allow us to visualise how the world might look in 2040, they also enable us to start preparing for scenarios which will impact on our clients on a national and international scale."