BRUSSELS (AP) — A report issued Thursday says the European Union can cut its emissions of greenhouse gases dramatically by 2050 without spending any more money — and even, perhaps, saving a bit.

That estimate is based on an assessment that the new plants and equipment needed to switch to the generation of clean energy would cost more than continued reliance on fossil fuels, but that the clean energy itself would cost less.

Dec. 1 (Bloomberg) -- Solar technologies such as photovoltaic panels, water heaters and power stations built with mirrors could provide a third of the world’s energy by 2060 if politicians commit to limiting climate change, the International Energy Agency said.

Energy from the sun could play a key role in de-carbonizing the global economy alongside improvements in efficiency and imposing costs on greenhouse-gas emitters, the agency said in a report today.

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We don’t need nuclear power, coal, or biofuels. We can get 100 percent of our energy from wind, water, and solar (WWS) power. And we can do it today—efficiently, reliably, safely, sustainably, and economically.

We can get to this WWS world by simply building a lot of new systems for the production, transmission, and use of energy. One scenario that Stanford engineering professor Mark Jacobson and I developed, projecting to 2030, includes:

"Very radical" concept could be a game-changer for the solar industry.

Cambridge, MA, USA -- MIT researchers and their collaborators have come up with an unusual, high performance and possibly less expensive way of turning the sun's heat into electricity.