India, July 8 -- Marine litter has become a global concern because untreated solid and liquid waste increasingly ends up in the oceans, says Satish Sinha of Toxics Link.

Sinha says plastics, hazardous chemicals and microplastics can affect marine biodiversity, enter food chains and raise concerns for human health.

Better waste management, safer plastics and stronger systems to collect and process difficult-to-recycle materials are essential to addressing the problem, he says.

Marine litter is emerging as a major environmental and public health concern, as waste generated on land and at sea increasingly ends up in the oceans. Satish Sinha, associate director at environmental nonprofit Toxics Link, says the problem is not limited to visi...