Prof. Dr. Gerd Ganteför (university of Konstanz in germany)
22:10 "green color[..]photosynthetic activity[..]chlorophyll production[..]Satellite images[..]nasa[..]between in 2000[..]over these 13 years to 2013[..]plant activity[..]drastically increased[..]because the growth period starts earlier ends later[..]spring comes earlier autumn comes later the plants have more opportunity to grow"