JoNova

A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).


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Think it has been debunked? See here.

The Skeptics Handbook II

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Wow? On sea-levels NSW councils told to take “scientific” approach, not IPCC predictions

This is a big deal. Here’s a state government telling people to be more scientific, and not blindly follow the IPCC. This is a win we need to translate to other areas.

The former Labor government in NSW had told councils they had to plan for sea-level rise  “according to the IPCC”, but that made sea-side properties unsalable, and was pretty painfully stupid compared to what the tide gauges were actually saying (like in Sydney where the rise is a tiny 6cm a century). The new strategy says councils need to be scientific and look at the conditions on each beach separately.

In this issue, the costs of following the IPCC plan were borne by those living on the coast (and property developers), and that pain motivated them to press the State government to get the IPCC out of the way. This is a reminder that it is worth protesting and sane things do happen.

If we can get citizens of the free west to appreciate the true cost of the IPCC, it would surely be gone by 2020. Now there’s a target..

Rob Stokes announces shake-up of council coastal management

In an interview with The Australian, [...]

Write to a tree about climate change in the Melbourne City Council, and it will write back

Wait for it… “dozens” of Melbournians are writing emails to trees and the trees are writing back (thanks to paid staff who can speak Elmlish, Oatin, and Planely).  Lots of trees are being told they are set to die off thanks to climate change. The Stress!

Broadsheet Melbourne

Right now, you can log onto the City of Melbourne’s Urban Forest Visual map and email any tree you’d like within the council’s boundaries.

Yep, all 60,000 of them.

The Gulf Today. AE

But almost a quarter of its trees, including oaks, elms and planes, are set to die off by the end of the decade, and that figure will rise to almost 40 per cent by 2030, speeded by a devastating 13-year drought that broke in 2012.

“As our climate becomes more and more extreme, we’re going to have to look at trees that are fit for purpose,” Councillor Arron Wood said.

So you can write to a tree in Melbourne and it will write back:

The quirky emails, to which staff respond on behalf of the trees, are building awareness of climate change in Melbourne, regarded as Australia’s most European [...]

Sydney Sea levels rising at just 6.5cm per century. Peak-panic is behind us.

In The Australian Bob Carter compares the long term tide gauge record in Sydney with projections, and exposes the exorbitant cost of insurance for alarmist sea level forecasts. The good news is that it appears councils are waking up, and  “peak-sea-level-panic” is behind us.

Sea-level alarmism has passed high tide and is at last declining. With luck, empirical sanity will soon prevail over modelling.

After years of research it turns out that talking about “global”  sea level rise is nearly meaningless to real people who live in one place. The ocean rise varies locally from beach to beach from as little as 5cm per century to as much as 16cm per century. The variations are mostly due to different rates of land subsiding or rising.

More importantly, the rate of rise was either the same or was even faster before World War II when CO2 levels were “safe”.

Figure 5: Comparison of decadal rates of change over historical record. Analysis based on relative 20-y moving average water level time series. | Watson 2011

Fort Denison in Sydney has one of the longest running continuous records, starting in 1886, and finally local councils are realizing that they need [...]