First Nations used scales of ponderosa pine or yellow pine trees to make small hot smokeless fires that cooled rapidly so their enemies would not be able to track them.
Wheaty weather
Wheaty weather British scientists have found a link between
climate conditions in the North Atlantic and the quality of wheat
harvests six months later. Changes in air pressure over the
Atlantic, known as the North Atlantic Oscillation, are now known to
affect Europe's climate. This news should allow farmers to plan
ahead for the sowing and harvest of their crops. 29 MAY 1999, P. 23
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