Showing results for "engineering transitions" in Science & Engineering

What makes the modern world work? The answer to this deceptively simple question lies in four "grand transitions" of civilization - in populations, agriculture, energy, and economics - that have transformed the way we live.

Imagine a world without bees, butterflies, and flowering plants. That was Earth 125 million years ago. Turn back the clock 400 million years, and there were no trees. At 450 million years in the past, even the earliest insects had not yet developed. And looking back 500 million years, the land was devoid of life, which at that time flourished in a profusion of strange forms in the oceans. These and other major turning points are the amazing story of evolution.

Voici une histoire radicalement nouvelle de l'énergie qui montre l’étrangeté fondamentale de la notion de transition. Elle explique comment matières et énergies sont reliées entre elles, croissent ensemble, s’accumulent et s’empilent les unes sur les autres. Pourquoi la notion de transition énergétique s’est-elle alors imposée ? Comment ce futur sans passé est-il devenu, à partir des années 1970, celui des gouvernements, des entreprises et des experts, bref, le futur des gens raisonnables ?

In just a few short decades, the many countries of our planet have become interconnected beyond our wildest imaginations. While thinking globally is often well-meaning, acting globally without consideration for local countries can unintentionally cause harmful results. In A Just Transition, renowned Cameroonian author and entrepreneur NJ Ayuk reveals how this sobering reality is unfolding as the International Energy Agency’s ambitious green energy (IEA) policies have stifled and crippled the energy economies of Africa.

The world is overheating, and despite good intentions and significant efforts, emissions increase nearly every year. The challenge is immense, but there are solutions. In this lucid, inspiring essay, Alan Finkel maps Australia’s path forward. He explains the solar and wind revolution and addresses the challenge of intermittent supply. He introduces hydrogen, the energy hope of the future. He traces the rise and rise of the electric car. He shows how we can build a zero-emissions world.