The U.S. has laid out how it intends to achieve this goal, and we urge other G-20 countries to demonstrate their commitment to this critical objective by detailing how and when they plan to eliminate policies that encourage the overconsumption of fossil fuels.

WSJ: Lawrence Summers and Timothy Geither: Our Agenda for the G-20

President Obama and President Karzai both had a goal of signing this agreement before the Chicago NATO summit later this month, and we had a goal of signing this agreement on Afghan soil to demonstrate our commitment to Afghan sovereignty and this new chapter in our relationship.

WHITEHOUSE: Via Conference Call

This is the opportunity for the government to demonstrate its stated commitment to general practice.

BBC: GPs demand large pay rise

These "Mastered in 4K" Blu-ray titles-paired with the native 4K titles for Sony's 4K video distribution service, which is planned to be launched in summer 2013 in the US-demonstrate Sony Pictures' holistic commitment to 4K and to the launch of this exciting new hardware into the market.

ENGADGET: Sony to launch 4K digital distribution network this summer, 'mastered in 4K' Blu-ray discs

Mr Suharto has yet to demonstrate the necessary commitment to seeing through any reform, so his devotion to this one would be tested to its limit.

ECONOMIST: Once again, Indonesia starts living dangerously

At this meeting, Anadarko and the other gas companies will have an opportunity to demonstrate their commitment to doing biodiversity positive business in the remote north of the country.

FORBES: Producing Gas and Protecting Biodiversity in Mozambique

It is at this time that we must demonstrate even greater resolve and commitment, redouble our efforts to prevent new infections, and support those who are infected and affected by HIV.

UNESCO: World Water Assessment Programme (WWAP)

It is great that consumers consistently tell pollsters that they are willing to choose products that demonstrate greater sustainability, but it would be even better if more of them followed through on this commitment at the check-out.

ECONOMIST: The Opposition's closing statement