How much human-caused global warming should we expect?

By Andy May OMG! The world is going to end, and we caused it. This story, in one form or another, goes back to biblical times. According to Genesis (6:9…

Stephen, Why Global Warming is not a problem

By Andy May The following is a quote from my book Climate Catastrophe! Science or Science Fiction? “99.9 percent of the Earth’s surface heat capacity is in the oceans and…

Do humans harm the environment?

By Andy May This is the first of seven posts on the potential costs and hazards of human-caused global warming and the impact of humans on the environment in general.…

Political Distortions in Climatology

Guest opinion: Dr. Tim Ball The Intergovernmental Panel on Climate Change (IPCC) claim with 95 percent certainty that they completed a 5000-piece puzzle using only eleven pieces. The pieces are…

We have Bigger Problems than Climate Change; So sayeth IPCC AR5

Guest essay by David M Hoffer [Doug L. Hoffman] It is remarkable what gems of wisdom one can find simply by sitting down and reading the IPCC AR reports and…

In House testimony, Botkin dismantles the IPCC 2014 report

Policycritic writes: You need to read this, Anthony. He dismantles the IPCC 2014 report for Congress. Botkin’s bio: “Daniel B. Botkin, a world-renowned ecologist, is Professor (Emeritus), Department of Ecology,…

Monckton and Monty – dead parrot parody of IPCC

First, if you have not seen the Monty Python “dead parrot” sketch in your lifetime, before you read the satire from Christopher Monckton below, watch this video. Just click on…

Analysis: What the World Needs Now is a Lot Less Poverty

What is “the biggest single barrier to improving societal resilience to the vagaries of climate.”? In a News & Analysis item recently published in Science, Kintisch (2014) discusses the most…

Two scathing reviews by scholars working with the IPCC show why the organization is hopelessly corrupted by politics

Two scathing letters critical of the IPCC process were published on Friday April 25th; one from Dr. Robert Stavins, an IPCC chapter Co-Coordinating Lead Author, and a five year veteran…

Dueling climate reports – this one is worth sharing on your own blog

NOTE: This op-ed is apparently too hot for some editors to handle. Late last week it was accepted and posted on politix.topix.com only to be abruptly removed some two hours…

A Clear Example of IPCC Ideology Trumping Fact

By Paul C. Knappenberger and Patrick J. Michaels Center for the Study of Science, Cato Institute Within the U.S. federal government (and governments around the world), the U.N.’s Intergovernmental Panel…

UN IPCC AR5 report infected with fatal technical and procedural flaws

UN report’s fatal flaws destroy credibility of WGII and WGIII findings Guest essay by Larry Hamlin The UN IPCC AR5 latest climate assessment process comprising WGI, WGII and WGIII reports…

UN IPCC AR5 climate reports: Conjecture disguised as certainty

UN IPCC WG report process fails to integrate critical information Guest essay by Larry Hamlin The world has experienced over the last 15+ years a remarkable absence of increasing global…

IPCC WGII report relies on exaggerated climate model results

WGII climate risks overstated and invalid Guest essay by Larry Hamlin The UN IPCC AR5 WGII final climate report has been released. This UN WGII report attempts to evaluate various…

LA Times Tony Barboza gets caught fear mongering the IPCC report, becomes first victim of facts that don't agree with claims

This sentence… “One of the panel’s most striking new conclusions is that rising temperatures are already depressing crop yields, including those of corn and wheat. In the coming decades, farmers…

Before you read the upcoming IPCC report, note this

The Working Group II IPCC report from the big shindig in Japan this week will be making headlines shortly, but take those headlines with a grain of salt. Richard Tol…

The Overselling of Climate Modeling Predictability on Multi-Decadal time Scales in the 2013 IPCC WG1 Report – Annex 1 Is Not Scientifically Robust

Guest essay by Roger A. Pielke Sr. Introduction I have posted in the past how the development of multi-decadal regional climate projections (predictions) to give to policymakers and the impact…

The AR5 hearings, live stream

Skeptics get a seat at the table. IPCC 5th Assessment Review Meeting starts at 9.30am GMT Witnesses Professor Sir Brian Hoskins, Grantham Institute, Imperial College London, Professor Myles Allen, University…

The IPCC discards its models

Who will believe the CMIP5 models, after the IPCC plenary had to discount their temperature projections? Guest essay by Barry Brill Table SPM.2 Projected change in global mean surface temperature…

IPCC silently slashes its global warming predictions in the AR5 final draft

Guest essay by Christopher Monckton of Brenchley Unnoticed, the IPCC has slashed its global-warming predictions, implicitly rejecting the models on which it once so heavily and imprudently relied. In the…

Oh say can you see modern sea level rise from a geological perspective?

Guest post by David Middleton Experts say the IPCC underestimated future sea level rise A new study surveys 90 sea level rise experts, who say sea level rise this century…

From 90% to 95% confidence level: How IPCC claims can be at the same time consistent and absurd.

We have been expecting too much from the IPCC about its confidence level increase: the explanation may actually be simple… and surprising. Guest essay by Stephane Rogeau Image: From IPCC…

Who are the true denialists?

Guest essay by Professor Philip Lloyd People have the nasty habit of giving their opponents names.  Those who are convinced that humans are wrecking the world by burning fossil fuels…

Statistical Analyses of Surface Temperatures in the IPCC Fifth Assessment Report

Guest essay by Douglas J. Keenan Temperatures on Earth’s surface—i.e. where people live—are widely believed to provide evidence for global warming.  Demonstrating that those temperatures actually provide evidence, though, requires…