Traditional skylight filters have been popular with photographers for years, because they help cut haze, and cut down on the blue color casts you sometimes get when part of your image is in the distance (like a mountain range in a landscape shot). The overall effect is a warming effect, and even though traditional screw-on filters actually have a magenta color cast to them, here in Elements we use a warming filter to get a similar effect and warm up an otherwise cold image.
Open the color photo you want to apply a skylight filter effect to in Elements. Click on the Create New Adjustment Layer icon at the bottom of the Layers palette, and choose Photo Filter.
In the Adjustments palette, ...