abandoned off the yemeni port of hudaydah for the past eight years and threatens a major environmental disaster if it disintegrates or explodes. nick quinn, who s advising on the operation, says the extreme heat is not helping. it is extremely hot out there so a 40 degrees ambient temperature for us at shore or going out on the boat will be on a steel deck, 50 to 55 celsius. it becomes really hot really quickly. that affects the human aspect of operating on board. the last ship covered by the soon to expire un brokered deal, which allows ukraine to export grain, has left the black sea port of odessa. russia has not agreed to register any new ships since the 27th ofjune the agreement will run out on monday, unless moscow agrees to extend it. grain prices rose sharply last year after ukraine s exports were disrupted by russia s invasion.