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Three professional Cleantech money managers' top stock picks.

McMoRan Exploration Co shares tumbled 15.2 percent to $8.18 a day after the oil and gas driller gave a disappointing update on a key gas prospect in a Gulf of Mexico well.

Jiaxing officials took Northern Cleantech Showcase delegates on a tour of the area, impressing them with logistical prowess and commitment to manufacturing scale. Large companies like ProLogis and Wal-Mart chose the Jiaxing area for distribution centers because of rail, highways and deep sea port connections.

So called "slow travel" over land is also an opportunity to understand the scale of the world, see the countryside, absorb different cultures and meet new people along the way.

For one thing, the recent wave of Arab uprisings has heightened Israels security concerns. The overthrow of Hosni Mubarak removed a long-standing ally, who had diligently upheld the peace treaty between the two countries. Israel now has few friends left in an ever more chaotic Cairo while the even greater turmoil in Syria has made its northern borders vulnerable, too. Most Palestinians, meanwhile, will be alarmed to see Islamist militants in that country trying to hijack the pro-democracy aspirations of ordinary Arabs, something they have experienced themselves with the Hamas takeover of the Gaza Strip.