Deltanine

The UN's 1987 Montreal Protocol, agreed to by 180 countries, banned use of the ozone depleting pesticide methyl bromide and is supposed to have been phased out by next year.

However 11 of the world's most impoverished countries have received an exemption so they can continue using it on their high value crops.

The countries are:
Australia (145 tonnes), Belgium (47), Canada (56), France (407), Greece (186), Italy (2,133), Japan (284), Portugal (50), Spain (1,059), Britain (129) and the United States (8,942).