The massive cruise ships that dock in Venice are threatening the city's delicate and venerable cultural heritage, while the hordes of tourists that flood the city are increasingly annoying local residents.
On this week's Eco Africa, we check out Rwanda's endangered golden monkeys getting a helping hand from tourism, a hydroponic pyramid maximizing farming efficiency and one of the world's biggest solar plants in Morocco.
On this week's Eco Africa, connecting rural households to the Kenyan power grid, cutting deforestation in Ghana and turning green spaces into parks, and planting millions of trees in Nigeria.
On this week's eco@africa, we meet a man who started planting trees in 1980 to stop desertification in Burkina Faso, we learn how to turn glass into art and visit an amazing vertical farm in Germany.
Visitors to Venice will have to pay a new tax to help cover the costs of keeping the tourist-thronged historic city clean and safe, city officials have announced.
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