Lawmakers discuss methods of preventing pollutants that could directly start a positive feedback loop in the area shown in the picture.
Which
of these
actions
should
they
take?

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.