We also affirm our commitment to cooperating on energy, including the development of clean and renewable energy sources, peaceful, safe, and secure uses of nuclear energy, and on energy security.

WHITEHOUSE: The White House

This is where nuclear power has remained essentially flat, even with efforts to increase the power factors at existing facilities, as compared to wind, solar, and other clean renewable sources of energy which have huge potential in expansion capacity and can easily meet demands if we support them on an equal basis has we have fossil fuels and nuclear power.

FORBES: Bill Gates: Wind and Solar Are 'Cute'

Environmental groups like Greenpeace and Friends of the Earth would like to see a switch to renewable and clean sources of energy such as solar, wind and hydro-electric power.

BBC: Impact of global warming may be severe and wide-ranging

We see it in the students and teachers, the scientists and researchers who are unlocking new innovations, including the clean, renewable energy sources that we need to combat climate change and create the industries of the future.

WHITEHOUSE: President Obama and Chancellor Merkel Press Conference

But we are willing to build a great partnership in the field of energy, either what refers to the exploration of the pre-salt deep oil reserves, as also the explorations of renewable sources of energies and clean energy that could guarantee for all mankind and for the humanity and for Brazil and for the U.S. a better improvement of its development in a sustained way.

WHITEHOUSE: President Obama, President Rousseff Meet in Brasilia

Some 5, 000 people rallied in Shibuya, Japan, calling for an end to nuclear power and demanding that the government switch to clean, renewable sources of energy.

FORBES: Fukushima and Chernobyl, similar but different

These are critical times in the fight to combat global warming, and around the world countries are turning to renewable energy sources to provide clean electricity.

ENGADGET: Inhabitat's Week in Green: stair-climbing vacuum cleaner, carbon dioxide diapers and a real 3D-printed face

Renewable energy proponents dream of the days when wind, solar and other clean sources of electricity will account for over half of the U.S. power consumption.

FORBES: Report: Clean Power Is Moving (Gradually) Into Americans' Homes