What is the Controversy Over the Hockey Stick Graph?
The hockey stick graph, a widely used visual representation of global temperature change over the past millennium, has been the subject of significant controversy among climate scientists and policymakers.
The main controversy stems from its "hockey stick" shape, which shows a relatively stable temperature record for centuries, followed by a sharp increase in temperatures over the past century. Critics argue that the graph exaggerates the recent warming trend and fails to account for natural variability in climate. They also claim that the data used to create the graph has been cherry-picked or manipulated.
Proponents of the hockey stick graph, however, argue that it accurately reflects the long-term trend of global warming. They point out that the warming trend is evident in multiple independent sources of data, including tree rings, ice cores, and sediment records. They also argue that natural variability alone cannot explain the observed temperature increase.
The controversy over the hockey stick graph has been used by climate change deniers to cast doubt on the scientific consensus on global warming. However, the vast majority of climate scientists continue to agree that the hockey stick graph accurately represents the long-term trend of global warming.
Related Questions
- What is the hockey stick graph?
- A visual representation of global temperature change over the past millennium.
- What is the controversy surrounding the hockey stick graph?
- Critics argue that it exaggerates the recent warming trend, while proponents argue that it accurately reflects the long-term trend.
- What is the main criticism of the hockey stick graph?
- Critics argue that the data used to create the graph has been cherry-picked or manipulated.
- What is the scientific consensus on the hockey stick graph?
- The vast majority of climate scientists agree that the hockey stick graph accurately represents the long-term trend of global warming.
- How has the controversy over the hockey stick graph been used by climate change deniers?
- To cast doubt on the scientific consensus on global warming.
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