They've been lying!-----Solar and wind are only considered to be “clean energy” sources because of their low carbon load.

Once you dig beyond the surface and consider material and land requirements for these renewables projects, it really becomes apparent that there is nothing “clean” / “green” about them. - Chris Martz@ChrisMartzWX

Other environmental impacts are seldom, if ever considered...

A single 1,000-megawatt nuclear reactor occupying 1 square mile of land, operating with a capacity factor of 0.93 can power roughly 775,000 homes over the course of a calendar year. 

Not considering battery storage, in order to power the same number of homes with either solar or wind, it would require: 

• Solar PV: 4,000 MW of installed power and 24,000 acres of land (37.5× as much land) 

• Onshore wind: 2,800 MW of installed power and 89,600 acres of land (140× as much land) 

That doesn’t sound very “green” to me.