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What do you think of these?
This was on the news recently, when Spain proudly introduced their first eco-friendly bus, with many more, likely to be appearing in the UK and The States, who have also joined the worldwide scheme, aimed at purifying the air in cities, which have a limited amount of green areas.
Do you think, this could be the next gardening craze ? Maybe, there will even be competitions for the best designed, mobile roof garden !
As for something that is likely to catch on with the average gardener, I'm not so sure, unless you happen to own a bus, are fairly agile and don't have a dislike of heights.