BLACK & WHITE

you go back to the formula, now we have two threats to human survival:  global warming AND war.                  

THREAT TO SURVIVAL X 2  =   B&W TREND  X 2

so B&W MUST be in style, stronger than ever before.

And, this all totally fits with what society needs. If you'll indulge me for a moment of colour philosophy...

COLOURS
First, lets take the warming of the earth.  It makes us think of the reds & oranges of fire, and yellow like the sun, that is slowly overheating us. We reject those warm colours because they mean our future destruction

But then, what happens after the earth warms up?  The ice caps melt and we get flooded. This makes us think of blues and cool colours. So we reject those cool colours too since THEY mean our destruction. And we say down with colour altogether. We cling to our one clear cut choice: B&W. Where colour means death, the absence of colour must mean life.