Modern society has been built upon an ultimately unsustainable foundation. Martin Nicholson presents a strong case for a return to renewable sources of energy, sources that humanity have relied on for millennia.  

Wendy Rogers, Professor of Clinical Ethics at Macquarie University, believes that Australia requires a national standard for the accurate and timely diagnosis of death after circulatory arrest.

Ian Plimer's recent book Heaven and Earth has caused its fair share of controversy. Here, Mike Pope attacks what he perceives to be its fundamentally unscientific argument, claiming that science fiction has more claim to veracity than Professor Plimer's position.

Gordon McGranahan notes that the public health revolutions of the 19th and 20th centuries did nothing to address the underlying environmental problem - and now, in the 21st century, we are being called to account for it. 

Julian Cribb warns that we could be staring down the barrel of a global destruction caused by deep sea clathrate eruptions - making emission reduction not just a necessity, but a matter of immediate urgency.

The one child family is fast becoming an ecological necessity in an already overpopulated world, writes Tim Murray. Is our ambition for the nuclear family destroying our planet? And our children's future?

The release of a new affordable car in India has raised objections about environmental accountability - and just who is responsible for cutting carbon emission. But do developed countries have the right to point the finger?

DNA sequencing for large genomes, including the bovine genome sequencing project, is becoming easier, cheaper - and more competitive. Professor David Adelson, of the University of Adelaide, writes about what this means for Australian analytical biologists in a global field.

Expert opinions in environmental decision-making are a necessary evil. We can do better to harness expert knowledge to avoid its worst social and psychological pitfalls.

Science is at a complicated stage where we rely on computer processed data for answers and the media, and sometimes even researchers, aren't sure what's going on, writes Professor Peter Doherty.