The industrial revolution made the world wealthy through a simple idea: to replace the physical labour of humans and animals with energy from fossil fuels. Two-and-a-half centuries after the revolution started, however, it is in trouble. The oil that powers much of the world’s economy is running out, and the greenhouse gases given off by the fuels are harming the planet.
New observations may provide alternative explanations for dark energy.
The technology could work with existing infrastructures, says Prof. Lee Cronin
We need to double-check the evidence on dark energy, as it may not exist at all, says Prof. Subir Sarkar.