JoNova

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


Handbooks

The Skeptics Handbook

Think it has been debunked? See here.

The Skeptics Handbook II

Climate Money Paper


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micropace


GoldNerds

The nerds have the numbers on precious metals investments on the ASX



Archives

Books

Dr David Evans: The Skeptic’s Case

A new brief summary of the reasoning and evidence behind the skeptics case. –Jo

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The Skeptic’s Case Who Are You Going To Believe – The Government Climate Scientists Or The Data? Guest Post Dr David M.W. Evans

We check the main predictions of the climate models against the best and latest data. Fortunately the climate models got all their major predictions wrong. Why? Every serious skeptical scientist has been consistently saying essentially the same thing for over 20 years, yet most people have never heard the message — here it is, put simply enough for any lay reader willing to pay attention.

What the Government Climate Scientists Say

 

Figure 1: The climate models. If the CO2 level doubles (as it is on course to do by about 2070 to 2100), the climate models estimate the temperature increase due to that extra CO2 will be about 1.1°C × 3 = 3.3°C. [1]

The direct effect of CO2 is well-established physics, based on laboratory results, and known for over a century.[2]

Feedbacks are due to the ways the Earth reacts to the direct warming effect of the CO2. The threefold amplification by feedbacks is based on the [...]

New Here? The “ten second” guide to the world of skeptics

… Almost everything you thought you knew about man made global warming might be a worthless half-truth.

…………….. The evidence shows temperature controls carbon dioxide (you read that correctly). Temperatures rise first, and CO2 follows. Global warming is real, but it started a century (or two) before our emissions. The world is warmer than in 1850, but cooler than 1,000 years ago, 8,000 years ago, 130,000 years ago, and cooler than most of the history of life on Earth. CO2 is called “pollution” but it feeds all plant-life on Earth. Big-Oil paid some skeptics, but Big-Government outspent it 3,500 to 1, and even Big-Oil spent far more on renewables than on “deniers”. Big Greens used to fight big corporates, but now they are big-corporates. The real grassroots movement are the skeptics who take on the lot. ………………

Lastly, Big Bankers want us to trade carbon. Think about that.

The Skeptics Handbook sums up the science (with cartoons)

I used to believe in man-made global warming. Then I found out that there was another side to the story, and I was shocked. The good name of science is [...]