$5bn fund unveiled for climate-friendly shipping
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A group of ship owners have announced plans for a $5bn (£3.8bn) fund to design zero-emissions vessels.
They says $2 (£1.50) should be levied on every tonne of ships' fuel - to support research into clean engines.
Shipping creates about 3% of the emissions that are over-heating the climate - equivalent to all of Germany's CO2.
Environmentalists welcomed the proposal but also described it as too little, too late.
They say it's outrageous that international shipping pays no fuel taxes, unlike lorry owners.