The new funding comes as Theresa May is expected to call on Commonwealth heads of government to commit to addressing the issue of marine plastic.
Plastic bottles are one of the largest groups of plastic entering the ocean each year.
The UK Government have announced a fighting fund to help deal with the issue of plastic pollution entering the ocean.
Over £61 million has been allocated to deal with marine plastic in an announcement made on the eve of the Commonwealth heads of government meeting in London today.
Included in the fund is support for researchers exploring marine plastic, assistance for preventing waste in developing countries and an extension of UK Aid Match to include pound for pound matching funding for donations dealing with overseas plastic waste.
The announcement comes as Theresa May is expected to call on the Commonwealth heads of government to sign up to the Commonwealth Clean Oceans Alliance, with New Zealand, Sri Lanka, Vanuatu and Ghana already committed to supporting the strategy.
Plastics continue to be one of the most serious threats facing whales and dolphins in the modern era, with billions of tons entering the ocean since the 1950s. To find out how you can reduce, reuse and recycle, commit to Make a Small Change and do your part to prevent marine litter continuing to damage the environment.