Greenhouses

The European Union is negotiating on how to translate its planned 55 percent reduction in greenhouses gases into legislation that will work for all 27 member states, all of which have different economic and domestic political interests and different levels of energy development.

The show displays orchid species that originated all over the world. Now, they are grown a few kilometers away in greenhouses. There the temperatures are adjusted so the orchids bloom in time for the show.

An abundance of other crops, including tomatoes, lettuce, cucumbers, and other vegetables are flourishing in the New York Sun Works greenhouses. They're grown using hydroponics technology where the roots are immersed in trays of nutrient rich water, not soil.

Part high-tech farm, part laboratory, and part floating classroom, the New York Sun Works Science Barge sports solar panels, wind turbines, a couple of greenhouses and other gear aimed at demonstrating sustainable agriculture in one of the world's most densely-packed cities.