The campaign group said the sculpture, which depicts an idyllic family beach scene interrupted by birds choking on plastic, was intended to highlight what it claimed were failings by the company.
In a report released on Monday
, Greenpeace claimed that Coca-Cola -- the world's largest soft drinks company -- sells more than 100 billion plastic bottles every year. Single-use plastic bottles make up nearly 60% of the packaging produced by the company globally, the report says.
It is impossible to know how many of these bottles end up in seas and oceans, but Greenpeace said Coca-Cola wasn't doing enough.
"We were trying to uncover for the first time the true size of Coca-Cola's plastic footprint," Louisa Casson, oceans campaigner for Greenpeace, told CNN. "And we are actually seeing them going backwards. Rather than investing more in refillables and reusables, they've increased their use of single-use plastic bottles over the last decade."
Coca-Cola said it was "disappointed" by the action by Greenpeace, and said it would publish a new "sustainable packaging strategy" later this year.
Casson said that although "the company continues to call on their customers to recycle," only 7% of Coca-Cola bottles on average are made with recycled plastic.
Casson pointed out that several soft drinks brands already use 100% recycled material in their bottles, including Suntory's UK brand Ribena and PepsiCo's 7Up, which has been sold in 100% recycled "Eco-Green" bottles since 2011.
Greenpeace claimed Coca-Cola is also falling behind on its target to recycle the equivalent of 75% of the bottles and cans it sells in developed countries by 2020, despite their bottles being 100% recyclable.
"We've installed this (sculpture) at their front door today to stop them washing their hands of the problem," said Casson.
"Plasticide" was designed by underwater sculptor Jason deCaires Taylor. At 2.5 tons, the sculpture is "pretty heavy," Casson said, "but ten times that weight of plastic is flowing into the oceans every single minute."
The problem of marine litter