Australia’s Government needs to start listening to its scientists and using their ideas to create a global plan, if it hopes to prevent environmental, social and economic problems in the future, warns Julian Cribb.

If nothing is done to humanely reduce kangaroo populations, their habitats will be overgrazed and the animals could starve to death, argues Emeritus Professor Gordon Grigg.

There is a way to create a positive feedback loop where saving greenhouse gases generates more savings, according to Kevin Cox.

In order to avoid irreversible and costly damage to our ecosystems, Australia must accept that ecological, economic and social change are intrinsically linked, writes Max Finlayson.

The Garnaut Enquiry is required to look forward 100 years. There is a risk in predicting so far ahead, warns Tom Quirk.

Sorry Ross Garnaut - thank you for your input but we will see if we can get someone come up with a more favourable point of view, writes John Töns.

Can we presume that if a study is completed, a plan written, people are trained and trees are planted, then natural resource management, Australian-style, is complete?

Despite the known dangers of leaded petrol, a new study has revealed the lead industry and the New Zealand government delayed introducing unleaded for 20 years.

Honest belief, self sacrifice or extreme activism won’t mitigate climate change without the co-operation of key polluting nations, says Arthur Thomas.

Leasing out coal-fired power stations will ensure their continuation and jeopardise the fight against climate change, warned an energy expert.

We have no time to waste. Professor Ross Garnaut has already made it clear that we need deep cuts fast, warns Christine Milne.

Professor Garnaut barely scratches the surface in recognising the enormousness of the task needed to reduce CO2 emissions by 90 per cent, writes Alan Moran.

To ensure a sustainable future the Australian Government must work with scientists to promote innovative research, according to Senator Kim Carr.

How do we find the money needed to do the work of containing greenhouse gas emissions and save the planet? Peter Vintila makes some suggestions.

Our convenience and self-indulgence come at a cost that most of us, by choice or indifference, casually ignore, writes Kasy Chambers.