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A laser of sufficient intensity traveling through air will - by itself - engineer a narrow channel over which light will propagate for tens or even hundreds of meters. Such filaments of laser light were first created at the end of the twentieth century, and investigators are now beginning to explore new applications for them.

The need to improve the reliability and robustness of power systems and smart grids makes protection of sensitive equipment and power transmission and distribution lines against lightning-related effects a primary concern. Renewable electricity generation capacity has been increasing all over the world, and lightning can cause failures either by hitting the turbines or panels directly or inducing transients on the control systems that lead to equipment failure, malfunction or degradation.

Urban Transport energy efficiency and environmental sustainability continue to present big challenges for city leaders and policy think tanks. As the share of the world's population living in cities grows to nearly 70 per cent between now and 2050, urban transport energy consumption is forecast to double to meet the travel demand in the world's future cities. This urban growth will also dramatically change the scale and nature of our communities, and put a tremendous strain on the built environment and infrastructure that delivers vital services like transport.