But what about sun an­gle?

The Morning Call - - LOCAL NEWS -

While weather can play an im­por­tant part in our yearly edi­tion of “As the Leaves Turn,” me­te­o­rol­o­gist Ed Vallee of Em­pire Weather, which pro­vides lo­cal­ized fore­casts for The Morn­ing Call, said the color change is pri­mar­ily re­lated to sun an­gle.

In short, our so­lar en­ergy is dwin­dling based on the an­gle of the sun. It’s that en­ergy that re­ally drives pho­to­syn­the­sis in leaves and pro­vides enough sun­light

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