When the Soviet Union collapsed in the early 1990's, food production on the island of Cuba was disrupted — as the supply of Russian fertilizers, pesticides, tractors, and oil dried up. Under the stress of an imminent food crisis, the island quickly rebuilt a new form of diversified farming — including many urban organic gardens — that depended less on imported synthetic chemicals. Over the last two decades, Cuba blossomed into a world-class showcase of conservation agriculture, with improved soils and cleaner water.
A United Nations Environment Assembly meeting which was held in Nairobi from March 11-15 considered whether to start assessing, and setting rules on, technologies that could pull carbon out of the atmosphere or block some of the sun’s warmth to cool the Earth.
Although the Amazon Jungle may appear to be perpetually green, a University of Illinois researcher believes there are actually seasonal differences of photosynthesis, with more occurring during the dry season and less during the wet season.