Report Heartland Institute sent to influence US teachers on climate change earns an “F” from scientists
“This document could be used in the classroom to teach students about deliberate misinformation and how to identify it.”
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Natural variability can not explain modern global warming, as Heartland Institute report claims
The warming experienced since the Industrial Revolution could not have been caused by natural factors. Human activity is primarily responsible for this (ongoing) change in climate.
Global warming has not “ceased”, as Heartland Institute report falsely claims
Global temperatures have continued to rise over the last few decades—notably in the oceans, which store over 90% of the excess heat trapped by the greenhouse gases humans have emitted. Over short intervals, temperatures may appear to increase slower or faster than the long term trend.
Heartland Institute report’s claim that climate models are too sensitive to CO2 does not reflect evidence
Climate models are based on physical processes and our understanding of how the climate system works. Their sensitivity to CO2 is in line with estimates based on modern observations and records of past climate changes.
Heartland Institute report incorrectly claims no evidence of human impacts in melting ice
The rapid loss of glacial ice and Arctic sea ice cover is a clear sign of the large human impact on the climate system.
Global sea level rise is accelerating, despite Heartland Institute report’s claims otherwise
Globally, sea level is rising due to melting glacial ice and warming oceans, and the current rate of sea level rise is faster than past rates.
The Sun cannot explain recent global warming, contrary to what Heartland Institute report claims
The warming influence of CO2 has been much greater than that of the Sun over the past century, and the pattern of observed climate change cannot be explained by solar forcing.
Climate sensitivity estimate given in Heartland Institute’s report is misleading
“Neglecting feedbacks in this statement is seriously misleading to uninformed readers. Feedbacks have been clearly identified as major amplifiers of the initial CO2-forced change. These feedbacks are explicitly resolved in climate models.”
Key Findings of Heartland’s “Why Scientists Disagree About Global Warming”
Below is a list of statements extracted from the “Key Findings” section of the Heartland NIPCC report. Your annotations on this page will be duplicated over the original report. The full report can be found here. from section: “Why Scientists Disagree” claim #0.1 Extensive survey data show deep disagreement among scientists on scientific issues that must be resolved before … Continued
Here’s what we know about how climate change impacts hurricanes – and what we don’t
The uncertainty surrounding how hurricane frequency could change as the climate warms has been brought up in claims seeking to undermine climate change’s impact on hurricanes. These claims are examples of straw man arguments: noting that climate change may not lead to a higher number of hurricanes in the future does not mean that climate change has had – or will have – no impact on hurricanes at all.