Environment & Climate Change

In this article, the authors review the state of the art of ocean energy in desalination. It explores different sources of energy from the ocean that include electricity generation, as well as mechanical force and thermal energy and salinity gradients that can also be directly harnessed for powering the desalination processes. They also examine recent advances in scaling up for commercial deployment and discuss relevant cost, environmental, and social concerns.

Decision-makers often seek to design policies that support sustainable development. Prospective evaluations of how effectively such policies are likely to meet sustainability goals have nonetheless remained relatively challenging. Evaluating policies against sustainability goals can be facilitated through the inclusive wealth framework, which characterizes development in terms of the value to society of its underlying capital assets, and defines development to be potentially sustainable if that value does not decline over time.

"The rise of nations such as South Korea, Singapore and China as global economic players illustrated the importance of expanding and deepening human competence. A key starting point in the growth process is recognising that building engineering capabilities offered the best opportunity for technological leapfrogging and catch-up in a variety of industries."

Energy technology innovation is the key to driving the technological changes that are necessary to meet the challenge of mitigating energy-related greenhouse gas emissions to avoid 'dangerous climate change.' Success in innovation requires the enhancement of public investment in the innovation process, the creation of markets for low-carbon technologies through stronger climate policies, and a continued focus on energy access and equity.

Africa is yet to adopt full scale technology-led development. Steve Mbogo spoke to the Director of the Belfer Center's Science, Technology, and Globalisation Project and professor at Harvard University Calestous Juma on the opportunities that await the continent as a late comer.

"Leaders are those who help groups create and achieve shared goals. Traditionally, the leaders in international politics have been the most powerful states. However, while hard military power counts for more in the context of international politics than it does in democratic domestic politics, even in international relations conquest, or pure coercion, is not leadership, but mere dictation. Disproportionate power, sometimes called 'hegemony', has been associated with leadership, but appeals to values and ideology also matter, even for a hegemon...."

"On January 20, you will inherit a legacy of trouble: Iraq, Iran, Pakistan, Palestine, North Korea for starters. Failure to manage any one of them could mire your presidency and sap your political support—and threaten the country’s future. At the same time, you must not let these inherited problems define your foreign policy. You need to put them in a larger context and create your own vision of how Americans should deal with the world."

"I would urge every scientist and engineer with an interest in the intersection of S&T with sustainable well-being...to 'tithe' 10% of your professional time and effort to working in these and other ways to increase the benefits of S&T for the human condition and to decrease the liabilities. If so much as a substantial fraction of the world's scientists and engineers resolved to do this much, the acceleration of progress toward sustainable well-being for all of Earth's inhabitants would surprise us all."