On Amy Klobuchar Arguing that Solar and Wind Are Better Sources of Energy than Natural Gas

And she's basing this upon what? That natural gas is cheaper? That it doesn't require strip-mining in developing nations? That it has a much higher power-density? That it doesn't require back-up? That it's significantly more reliable? That it doesn't take up huge areas of land, ocean, etc.? That it's not as resource-intense? Seriously, I'd like to understand her reasoning............or lack thereof.