1 / 4   A special art installation made of 15,000 plastic bottles was unveiled at London Zoo in London, UK, on Wednesday. Named “Space of Waste,” the art piece was designed as part of an environmental campaign to highlight the scourge of plastic pollution in the UK and around the world. /VCG Photo

2 / 4   The approximately five-meter high artwork was created by artist Nick Wood, who collected 15,000 discarded plastic bottles from London and its waterways to represent the number of single-use plastic bottles bought by consumers in the UK every minute. /VCG Photo

3 / 4   On Wednesday, the exhibition welcomed its first group of curious visitors: students from a local primary school and a resident llama. /VCG Photo

4 / 4   Many countries around the world have brought out laws or regulations to tackle plastic pollution. In April, UK Prime Minister Teresa May proposed to ban all single-use plastic products across the country. The Chinese government has banned distribution of single-use plastic bags in grocery stores and shops around the country. /VCG Photo