As an amateur climber for 20 years, I learned that to scale daunting cliffs and ice, two core attributes are required -- courage and teamwork. You probably feel like you have been climbing your own mountain after two days of G8 talks at Camp David

While it is too early to speculate about what the UK government will prioritize next year, and it's unlikely that it will publish any formal agenda until the end of this year, we do know that much has changed since the last UK presidency of the G8 in 2005.

Frontline health workers are really the backbone of effective health systems in developing countries. These workers are members of the community who live in the communities they serve and understand the needs as well as the barriers to achieving optimal health.

Not only that we must redouble our efforts to increase our overall food production, but that we must do this with a smaller impact on the climate while promoting sustainable diets and uncovering new methods for efficient distribution and waste prevention.

bringing the benefits of agricultural development to the farmers at the end of the road, is the challenge within the challenge.

We hope G8 leaders commit to action and investment to improve nutrition for mothers and children during the critical 1,000 days from pregnancy to age 2, when nutrition can have a lifelong impact on a child's future in terms of both health and development.

Let's imagine for a moment what G8 policies might look like if the voices of people from impoverished communities were loudly heard.

The real test of any successful G8 summit is not a communiqué peppered with promises, but whether its commitments are kept. Many of us think the G8's leaders should be doing more at Camp David, but the least they can do is to finish what they have started.

The G8 Summit will take place this week in the United States, as President Barack Obama hosts leaders of the world's industrialized leaders -- aka the...

The decisions made by world leaders on what to cut and what should be funded have real-life implications for millions of people who live beyond the reach of hospitals and clinics in developing countries.

We're at risk of failing the poorest nations if we don't step up our efforts to address a health concern that's connected to the success of nearly every important socio-economic development milestone. I'm talking about neglected tropical diseases.

A critical mass is building behind a tax that could generate billions in much needed revenue while curbing the worst excesses of casino banking. It may be a small and simple idea, but it could make a big difference to the U.S. and the world.

As leaders of the G8 convene at Camp David, it is imperative they take corruption into account. Corruption underpins many of the summit's stated objectives -- such as promoting food security in Africa.

We believe that investments in national and economic development should use the growth of children as the best and most accurate yardstick to measure success.

As a doctor practicing in Africa, I have seen the AIDS pandemic unfold. I have witnessed the spread of HIV slow down as progress has been made in identifying effective prevention strategies.

Efforts to tackle noncommunicable diseases should not rest solely on the shoulders of governments and multilaterals. If we are to bring these diseases under control, we must have a commitment and cooperation from all sectors.

The 2012 G8 summit offers an important moment for global leaders to signal to the rest of the world that immunization and vaccine development programs are a top priority. They should not let this opportunity pass them by.

We can fight back against this lethal cocktail of climate change and extreme poverty. In fact, we created a plan on how to fight hunger in Niger, both in the short term and in the long term, so we can finally pull ourselves out of this cycle of crisis.

There is no lack of motivation to address global hunger at this summit, but it is how they are going about it that is causing concern.

President Obama, to borrow Dr. Martin Luther King's phrase, we are in the "fierce urgency of now." The G8 needs to find the political will to end malnutrition. Pledge to save 15 million children from chronic malnourishment. Don't just say it; do it.

The G8 summit is expected to produce a new "food security initiative" which is likely to have a strong focus on the private sector's contribution to increasing food production and, we fear, not enough on nutrition.