The polluted area caused by an oil spill is seen at the Evrona desert reserve, near the Red Sea resort city of Eilat December 10, 2014. Ecologists said on Wednesday it could take years to clean up the massive oil spill that flooded an Israeli nature reserve with up to five million litres of crude and threatened to spread to the Red Sea shore and neighbouring Jordan. REUTERS/Baz Ratner (ISRAEL - Tags: ENVIRONMENT BUSINESS DISASTER ENERGY) 

A polluted area caused by an oil spill is seen at the Evrona desert reserve, near the Red Sea resort city of Eilat December 10, 2014. Ecologists said on Wednesday it could take years to clean up the massive oil spill that flooded an Israeli nature reserve with up to five million litres of crude and threatened to spread to the Red Sea shore and neighbouring Jordan. REUTERS/Baz Ratner (ISRAEL - Tags: ENVIRONMENT DISASTER BUSINESS ENERGY) 

Members of a clean-up team work at the site of an oil spill at the Evrona desert reserve, near the Red Sea resort city of Eilat December 10, 2014. Ecologists said on Wednesday it could take years to clean up the massive oil spill that flooded an Israeli nature reserve with up to five million litres of crude and threatened to spread to the Red Sea shore and neighbouring Jordan. REUTERS/Baz Ratner (ISRAEL - Tags: ENVIRONMENT DISASTER BUSINESS ENERGY) 

A member of a clean-up team works at the site of an oil spill at the Evrona desert reserve, near the Red Sea resort city of Eilat December 10, 2014. Ecologists said on Wednesday it could take years to clean up the massive oil spill that flooded an Israeli nature reserve with up to five million litres of crude and threatened to spread to the Red Sea shore and neighbouring Jordan. REUTERS/Baz Ratner (ISRAEL - Tags: ENVIRONMENT ENERGY BUSINESS DISASTER) 

Israel's Prime Minister Benjamin Netanyahu looks out of a helicopter window at the polluted area caused by an oil leak in southern Israel December 9, 2014. Millions of litres of crude oil have gushed out of a pipeline to flood 200 acres of a desert nature reserve in southern Israel, officials said. REUTERS/Marc Israel Sellem/Pool (ISRAEL - Tags: POLITICS ENVIRONMENT) 

A polluted area caused by an oil spill is seen at the Evrona desert reserve, near the Red Sea resort city of Eilat December 10, 2014. Ecologists said on Wednesday it could take years to clean up the massive oil spill that flooded an Israeli nature reserve with up to five million litres of crude and threatened to spread to the Red Sea shore and neighbouring Jordan. REUTERS/Baz Ratner (ISRAEL - Tags: ENVIRONMENT BUSINESS DISASTER ENERGY) 

Members of a clean-up team work at the site of an oil spill at the Evrona desert reserve, near the Red Sea resort city of Eilat December 10, 2014. Ecologists said on Wednesday it could take years to clean up the massive oil spill that flooded an Israeli nature reserve with up to five million litres of crude and threatened to spread to the Red Sea shore and neighbouring Jordan. REUTERS/Baz Ratner (ISRAEL - Tags: ENVIRONMENT ENERGY BUSINESS DISASTER) 

Israel's Prime Minister Benjamin Netanyahu sits inside a helicopter during his visit to an area polluted by an oil leak in southern Israel December 9, 2014. Millions of litres of crude oil have gushed out of a pipeline to flood 200 acres of a desert nature reserve in southern Israel, officials said. REUTERS/Marc Israel Sellem/Pool (ISRAEL - Tags: POLITICS HEADSHOT TPX IMAGES OF THE DAY) 

Diggers work at a polluted area caused by an oil spill at the Evrona desert reserve, near the Red Sea resort city of Eilat December 10, 2014. Ecologists said on Wednesday it could take years to clean up the massive oil spill that flooded an Israeli nature reserve with up to five million litres of crude and threatened to spread to the Red Sea shore and neighbouring Jordan. REUTERS/Baz Ratner (ISRAEL - Tags: ENVIRONMENT ENERGY DISASTER BUSINESS)