Winter greens Winter greens Winter greens are green leaved vegetables, closely related to the cabbage, that are seasonably available in winter. Common vegetables described as winter greens are chard, collards, rapini, and kale. William Morgan classed Brussels sprouts, savoy cabbages and several varieties of kale as winter greens. Morgan grew these vegetables and compared their hardiness, identifying which species were most suitable for growing through cold winters. He presented his findings to the Horticultural Society of London in 1818. Late season crops "from October through December, a gardener can easily maintain and eat bok choy, pak choy (the purple pak choy is
Vegetable oils as alternative energy that yields 20% more oil than the standard variety. There is concern that the current growing demand for vegetable oil is causing deforestation, with old forests being replaced with oil palms. When land is cleared it is often burned, which releases large amounts of the greenhouse gas CO. Vegetable oil production would have to increase substantially to replace gasoline and diesel. With current technology such an increase in production would have a substantial environmental impact. In some poor countries the rising price of vegetable oil is causing problems. There are those that say using a food crop for fuel sets