“This document could be used in the classroom to teach students about deliberate misinformation and how to identify it.”
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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 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.
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.
The rapid loss of glacial ice and Arctic sea ice cover is a clear sign of the large human impact on the climate system.
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 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.
“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.”
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
“The benefit[s] of increasing CO2 concentrations for plant growth are increasingly being outweighed by the negative impacts, especially of global warming. This is true for natural as well as agricultural ecosystems.”