Yes, Global Warming really is happening, and the evidence is overwhelming. September 23 at 5:26am Â·. Rignotâs team found that Greenland's glaciers flowing into the ocean are grounded deeper below sea level than previously measured.
If you want your marijuana plants to start pre-flowering just change the light cycle to 12 hours on and 12 hours of complete darkness. Why does this work, well letâs think about how plants are in their natural environment.
1 Note that less than 12 hours light will reduce flowering speed and overall yield.  Note that putting the lights on during the 12 hour dark period a number of nights in a row, even for a few minutes can revert the cannabis back into its vegetative growth cycle.