The war and terrorism in the Middle East, the crisis of leadership in many of the oil-supply countries in the developing world, the crisis of global warming - all these are very clearly tied to energy.

We collaborate with other countries on issues like public health and climate change because we understand these issues affect our collective welfare.

The scientific community should work as hard as possible to address major issues that affect our everyday lives such as climate change, infectious diseases and counterterrorism; in particular, 'clean energy' research deserves far higher priority. And science and technology are the prime routes to tackling these issues.

Saving our planet, lifting people out of poverty, advancing economic growth... these are one and the same fight. We must connect the dots between climate change, water scarcity, energy shortages, global health, food security and women's empowerment. Solutions to one problem must be solutions for all.

Leadership has become a heavy industry. Concern and interest about leadership development is no longer an American phenomenon. It is truly global. Though I will probably be in less demand, I wanted to move on.

We are all living together on a single planet, which is threatened by our own actions. And if you don't have some kind of global cooperation, nationalism is just not on the right level to tackle the problems, whether it's climate change or whether it's technological disruption.

To deal with these problems - of world population and hunger, of peace, of energy and mineral resources, of environmental pollution, of poverty - we must broaden and deepen our knowledge of nature's laws, and we must broaden and deepen our understanding of the laws of human behavior.

Despite its challenges, globalization has led to one of the most peaceful and productive times in world history.

Accordingly, globalization is not only something that will concern and threaten us in the future, but something that is taking place in the present and to which we must first open our eyes.

The trends that are shaping the twenty-first-century world embody both promise and peril. Globalization, for example, has lifted hundreds of millions of people out of poverty while contributing to social fragmentation and a massive increase in inequality, not to mention serious environmental damage.

Climate change, demographics, water, food, energy, global health, women's empowerment - these issues are all intertwined. We cannot look at one strand in isolation. Instead, we must examine how these strands are woven together.

The OECD deals with the economic aspects of a host of issues, including education, health, and the environment.

Without question, we need to be informed of the happenings in the world. But modern communication brings into our homes a drowning cascade of the violence and misery of the worldwide human race. There comes a time when we need to find some peaceful spiritual renewal.

The world faces enormous human development and environmental challenges, from poverty and disease to food security and climate change.

The great paradox of the 21st century is that, in this age of powerful technology, the biggest problems we face internationally are problems of the human soul.

Inspiring scenes of people taking the future of their countries into their own hands will ignite greater demands for good governance and political reform elsewhere in the world, including in Asia and in Africa.

I believe that the future of humans, and the future of Earth, depends on space exploration. That's not a French problem, or a problem for Alabama: it's a planet-wide problem. International cooperation is crucial.

We are living in a global world - but most schools and books still tell us only parochial histories of one particular country or culture. The truth is that there are no longer any independent countries in the world.

If America wants to retain its position as a global power, its president must listen to the people and show strong leadership at this turning point in human history.

To give students the best possible chance to succeed, education must prepare them to handle issues that transcend national boundaries.

Every global concern - economic, environmental or security-related - can be addressed more effectively when the U.S. and China work together.

World peace is no longer some pie-in-the-sky thing, because no single person or country is going to solve it on their own.

Grave security concerns can arise as a result of demographic trends, chronic poverty, economic inequality, environmental degradation, pandemic diseases, organized crime, repressive governance and other developments no state can control alone. Arms can't address such concerns.

Europe and Africa share proximity and history, ideas and ideals, trade and technology. You are tied together by the ebb and flow of people. Migration presents policy challenges - but also represents an opportunity to enhance human development, promote decent work, and strengthen collaboration.

Global poverty is a complex web of interlinked problems. There is no one 'silver bullet' that will solve global inequality. Multiple contributing factors must be tackled in parallel. Yes, education alone is unlikely to lead to employment without economic reform to address the demand side in much of the developing world.

Fortunately, the war has brought with it not alone a stark realization of what another war would mean to the world, but as well the creation of an international agency through which the nations of the world can, if they so desire, make peace a living reality.

When you look at human rights, look at gender, and the rights of girls for education in the world - that are crucial issues - some are saying 'Oh, these are western values.' But these are really universal values.

The goal must be to expand ourselves beyond one field of focus and use our improved access to information to solve the very real and extreme economic, environmental, and resource challenges we face as an interconnected, global society.

Climate change does not respect border; it does not respect who you are - rich and poor, small and big. Therefore, this is what we call 'global challenges,' which require global solidarity.

Affairs of state tend to drive most presidents toward the center on both foreign and domestic policy, no matter where on the political spectrum they begin, and especially so in the areas of intelligence and law enforcement.

Saving our planet, lifting people out of poverty, advancing economic growth... these are one and the same fight. We must connect the dots between climate change, water scarcity, energy shortages, global health, food security and women's empowerment. Solutions to one problem must be solutions for all.

Poverty must be eradicated, the resources of our planet used sustainably, human rights respected, equality between men and women strengthened, HIV/AIDS and other diseases prevented, terrorism stopped, and disarmament and non-proliferation secured.

In this age of growing interconnectedness, we understand that turning our backs on the world is simply not an option.

In truth, the world is now a seamless web from which no nation, large or small, young or old, can disassociate itself. Every attitude and every action of every nation can affect the welfare and security of every other nation around the globe.

In a world of serious threats to the U.K. and to global stability, where we see violence and conflict pulling people back into poverty, international terrorism, migration crises, children dying from preventable diseases and global environmental concerns on the rise, Britain's leadership on the world stage is more important than ever.

American policy seems to be wed to a perpetual state of war. Why? History shows that the world will always be in flux or turmoil, with different peoples competing for visibility and power. The U.S. cannot fix the fate of every nation.

Climate change joined immigration, job creation, food safety, pilot training, veterans' care, campaign finance, transportation security, labor law, mine safety, wildfire management, and scores of executive and judicial appointments on the list of matters that the world's greatest deliberative body is incapable of addressing.

American intelligence and military agencies have a huge footprint in terms of how the world works, but they're largely invisible. I'm interested in exploring those 'geographies' of secrecy from many different angles: political, legal, economic, spatial, etc., because I am fundamentally just interested in how the world works and how societies work.

Helping people understand the impact of key environmental and human issues worldwide is something that I'm passionate about. CNN's 'Going Green' series of specials are engaging viewers around the world through important messages of conservation and hope.

GIS is waking up the world to the power of geography, this science of integration, and has the framework for creating a better future.

The Global Poverty Project's mission is to stand up for the world's poorest people. We fight for the full funding of Millennium Development Goals and advocate meaningful change to government and corporate policies that block progress and entrench injustice.

Yet, despite our many advances, our environment is still threatened by a range of problems, including global climate change, energy dependence on unsustainable fossil fuels, and loss of biodiversity.

I have long understood that climate change is not only an environmental issue - it is a humanitarian, economic, health, and justice issue as well.

The war on terrorism has made national security a legitimate concern, and a rising deficit, changes brought on by globalization and even the price of oil have thrown the nation's economic health into question.

Climate change, if unchecked, is an urgent threat to health, food supplies, biodiversity, and livelihoods across the globe.

The world is organised by the war economy and the war culture.

Global markets must be balanced by global values such as respect for human rights and international law, democracy, security and sustainable economic and environmental development.