The Conversation

GM proponents say the technology leads to better crop yields and may solve food shortages and reduce pests. Opponents say GM is a threat to the environment and humans. So where does the truth lie? Daniel Tan, Professor of Agronomy (Agriculture), University of Sydney Licensed as Creative Commons – attribution, no derivatives.

If problems in such schemes are not addressed, the credibility of soil carbon trading will be undermined. Ultimately the climate - and the planet - will be the loser. Aaron Simmons, Adjunct Senior Research Fellow, University of New England Annette Cowie, Adjunct Professor, University of New England Brian Wilson, Associate Professor, University of New England Mark Farrell, Principal Research Scientist, CSIRO Matthew Tom Harrison, Associate Professor of Sustainable Agriculture, University of Tasmania Peter Grace, Professor of Global Change, Queensland University of Technology Richard Eckard, Professor & Director, Primary Industries Climate Challenges Centre, The University of Melbourne Vanessa Wong, Associate Professor, Monash University Warwick Badgery, Research Leader Pastures an Rangelands, The University of Melbourne Licensed as Creative Commons – attribution, no derivatives.

Electric vehicles deserve government subsidies, but there are even better ways to build greener, less car-dependent cities. Kurt Iveson, Associate Professor of Urban Geography and Research Lead, Sydney Policy Lab, University of Sydney Licensed as Creative Commons – attribution, no derivatives.

Australia has one of the worst track records in the world for species extinctions. The federal government's proposed changes could weaken our already inadequate environment law. Martine Maron, ARC Future Fellow and Professor of Environmental Management, The University of Queensland Brendan Wintle, Professor in Conservation Ecology, School of BioSciences, The University of Melbourne Craig Moritz, Professor, Research School of Biology, Australian National University Licensed as Creative Commons – attribution, no derivatives.

Enabling wildlife to journey across farmlands not only benefits conservation, but also people. It means bees can improve crop pollination, and seed-dispersing birds can help restore ecosystems. Carla Archibald, Research Fellow, Conservation Science, Deakin University Eduardo van den Berg, Federal University of Lavras Jonathan Rhodes, Associate Professor, The University of Queensland Licensed as Creative Commons – attribution, no derivatives.

At the end of the day, net-zero by 2050 is a risky and inadequate goal, especially for wealthy nations such as Australia. Peter Christoff, Senior Research Fellow and Associate Professor, Melbourne Climate Futures initiative, The University of Melbourne Licensed as Creative Commons – attribution, no derivatives.

The development is significant for several reasons – not least that Australia's progress under the Paris Agreement is being linked to its stewardship of the reef. Jon C. Day, PSM, Adjunct Senior Research Fellow, ARC Centre of Excellence for Coral Reef Studies, James Cook University Scott F. Heron, Associate Professor, James Cook University Terry Hughes, Distinguished Professor, James Cook University Licensed as Creative Commons – attribution, no derivatives.

Science is never settled. But contrary to the claims of a new book, there is enough confidence in the science to justify significant climate action. Ian Lowe, Emeritus Professor, School of Science, Griffith University Licensed as Creative Commons – attribution, no derivatives.

As an economic superpower, China has far more left to do to ensure our planet remains liveable for vulnerable wildlife. Bill Laurance, Distinguished Research Professor and Australian Laureate, James Cook University Licensed as Creative Commons – attribution, no derivatives.

Could this disaster have been avoided? And under climate change, how can we prepare for more events like this? Anthony Richardson, Researcher and Teacher, Centre for Urban Research, RMIT University Licensed as Creative Commons – attribution, no derivatives.

Three suburbs in Victoria have been warned against drinking tap water — even if they boil it first. Ian Wright, Senior Lecturer in Environmental Science, Western Sydney University Licensed as Creative Commons – attribution, no derivatives.

An emissions trading scheme is New Zealand's main policy to tackle climate change. But to bring down emissions quickly enough, other policies will need to transform transport and agriculture. David Hall, Senior Lecturer in Social Sciences and Public Policy, Auckland University of Technology Licensed as Creative Commons – attribution, no derivatives.

Tassie devils are notorious scavengers, eating everything from echidnas to stranded whales. Understanding how their teeth wear down can help us feed and protect captive populations. Tahlia Pollock, PhD candidate, Monash University Alistair Evans, Associate Professor, Monash University David Hocking, Curator of Vertebrate Zoology and Palaeontology at the Tasmanian Museum and Art Gallery (TMAG) | Adjunct Research Associate at Monash University, Monash University Marissa Parrott, Reproductive Biologist, Wildlife Conservation & Science, Zoos Victoria, and Honorary Research Associate, BioSciences, The University of Melbourne Licensed as Creative Commons – attribution, no derivatives.

When the snake is ready to shed its skin, it rubs its body along rocks, plants and other rough things to peel the old layer of scales — often in a single, snaky piece. Damian Lettoof, PhD Candidate, Curtin University Licensed as Creative Commons – attribution, no derivatives.

What's going on here? Why do spiders do this after floods and does it happen everywhere? Lizzy Lowe, Researcher, Macquarie University Licensed as Creative Commons – attribution, no derivatives.

Peatlands worldwide are running short of water, and the amount of greenhouse gases this could set loose would be devastating for our efforts to curb climate change. Yuanyuan Huang, Research Scientist , CSIRO Yingping Wang, Chief research scientist, CSIRO Licensed as Creative Commons – attribution, no derivatives.

A complete switch to biofuels is neither feasible nor desirable, but they could replace some fossil fuels in transport and heating. If biofuels are produced from waste products, that's even better. Troy Baisden, Professor (Environmental Sciences), University of Waikato Licensed as Creative Commons – attribution, no derivatives.

A better understanding of the science behind falling trees – followed by informed action – will help keep us safe and ensure trees continue to provide their many benefits. Gregory Moore, Doctor of Botany, The University of Melbourne Licensed as Creative Commons – attribution, no derivatives.

For phascogales, tree hollows are getting harder to find. I venture into forests and study how well artificial hollows made with chainsaws can replace them. William Terry, PhD Researcher, Southern Cross University Licensed as Creative Commons – attribution, no derivatives.

Keeping global warming under 1.5℃ is still achievable with rapid deployment of renewables. A new report found solar and wind can supply the world's energy demand more than 50 times over. Sven Teske, Research Director, Institute for Sustainable Futures, University of Technology Sydney Sarah Niklas, Research Consultant, Institute for Sustainable Futures, University of Technology Sydney Licensed as Creative Commons – attribution, no derivatives.