The world needs $1.9 trillion in green technology investments a year, with over half of that sum necessary for developing countries," the U.N. said Tuesday.

"Over the next 40 years, $1.9 trillion (1.31 trillion Euros) per year will be needed for incremental investments in green technologies," the U.N. Economic and Social Affairs body said in its annual survey.

The United Arab Emirates has pledged $3 billion in financial assistance to Egypt during a visit to the oil-rich Gulf state by Prime Minister Essam Sharaf, state media said.

UAE President Sheikh Khalifa bin Zayed al-Nahayan "has issued directives to allocate an aid package of $3 billion for Egypt," the official WAM news agency reported late on Monday.

Oil rose in Asian trade Monday after Eurozone finance ministers cleared the way for debt-hit Greece to receive 12 billion Euros by mid-July, analysts said.

In afternoon trade, New York's main contract, West Texas Intermediate for August delivery, rose 12 cents to $95.07 a barrel and Brent North Sea crude for August added 18 cents to $111.95.

The eurozone is set to release a vital installment of aid money for Greece Saturday, but will leave the final decision on a second bailout for the debt-ridden country until later this summer.

The finance ministers of the 17 countries that share the euro will sign off on an €8.7 billion ($12.6 billion) tranche of Greece's existing bailout in a conference call Saturday evening. An extra €3.3 billion will come from the International Monetary Fund, whose board is expected to approve the loan next week.

Nissan's plant is busily rolling out the Leaf electric car and other models on a Saturday, having shifted production schedules for an aggressive nationwide effort to fight the power crunch created by a tsunami-crippled nuclear plant.

"Setsuden," or "save electricity," is now Japan's biggest buzzword. The March 11 disaster sent several reactors at the Fukushima Dai-ichi nuclear power plant into meltdowns, prompting the government to demand that major companies, shopping malls and universities reduce electricity consumption by 15 percent.

A top International Monetary Fund official said Thursday that the crisis lender is still ready to support Egypt after Cairo withdrew its $3 billion loan request last week.

Ratna Sahay, the Fund's deputy Middle East director, rejected accusations that the planned facility had politically tough secret conditions to force privatizations and end subsidies.

World oil prices slid on Thursday on profit-taking after soaring the previous day on easing concerns over Greece and signs of strengthening energy demand in the United States.

Brent North Sea crude for delivery in August sank $1.01 to $111.39 in early London trade, having rocketed by $3.62 the previous day.

Nissan chief executive Carlos Ghosn Wednesday said he received 982 million yen compensation in the year ended March, making him the highest paid foreign executive in Japan.

The amount, which includes salary and stock options, is equivalent to around $12 million at current exchange rates and was disclosed at Nissan's annual general meeting of shareholders.

Kuwait's parliament on Wednesday passed a deficit budget for the 2011-2012 fiscal year projecting the highest spending in the OPEC member's history amid warnings the country's future is at risk.

Thirty-nine MPs voted for the budget while 20 were opposed.

France's Christine Lagarde was named Tuesday as the first-ever female chief of the IMF, faced with an immediate crisis as violent Greek protests rocked the stability of the eurozone.

The French finance minister, respected for her leadership during the financial crises that have rocked Europe over the past three years, was chosen to replace countryman Dominique Strauss-Kahn, who resigned abruptly on May 18 after being arrested in New York for an alleged sexual assault.