Australian scientists sound alarm over Paris climate goals

It calls the goal “virtually impossible” based on how significantly temperatures have already shifted, and the lack of emissions reduction commitments that would meet the challenge.

The details: Consistent with other recent studies, the report warns the world is on course for at least about 3 degrees Celsius (5.4 Fahrenheit) of warming if current emissions reduction pledges are not dramatically altered.

• Australia — the world’s driest inhabited continent — has much to lose from climate change, as demonstrated by the recent flooding, wildfires and bleaching of vast stretches of the Great Barrier Reef.
• As warming worsens, the country’s energy infrastructure will be increasingly stressed by heatwaves and storms. The report recommends “diversifying energy sources” and making systems more resilient.
• It notes that to reach net-zero emissions by 2050, the country would need to “shift energy export industries to zero emissions as a matter of urgency.” That's no small feat, considering that Australia is one of the world’s largest coal exporters, much of it flowing to China.

The bottom line: Unless far more ambitious near-term emissions targets are established, which is the main goal of both the White House and UN climate meetings, the report finds that even the less stringent Paris 2-degree target won’t be achievable. This is because emissions trajectories would begin arcing downward too late to get there.