Updated key facts

1. The RSS satellite dataset shows no global warming at all for 214 months from
October 1996 to July 2014. That is more than half the 427-month satellite record.

2. The fastest measured centennial warming rate was in Central England from
1663-1762, at 0.9 Cº/century – before the industrial revolution. It was not our
fault.

3. The global warming trend since 1900 is equivalent to 0.8 Cº per century. This is
well within natural variability and may not have much to do with us.

4. The fastest warming trend lasting ten years or more occurred over the 40 years
from 1694-1733 in Central England. It was equivalent to 4.3 Cº per century.

5. Since 1950, when a human influence on global temperature first became
theoretically possible, the global warming trend has been equivalent to below 1.2
Cº per century.

6. The fastest warming rate lasting ten years or more since 1950 occurred over the
33 years from 1974 to 2006. It was equivalent to 2.0 Cº per century.

7. In 1990, the IPCC’s mid-range prediction of near-term warming was equivalent
to 2.8 Cº per century, higher by two-thirds than its current prediction of 1.7
Cº/century.

8. The global warming trend since 1990, when the IPCC wrote its first report, is
equivalent to 1.4 Cº per century – half of what the IPCC had then predicted.

9. Though the IPCC has cut its near-term warming prediction, it has not cut its
high-end business as usual centennial warming prediction of 4.8 Cº warming to
2100.

10. Since 1950, when a human influence on global temperature first became
theoretically possible, the global warming trend has been equivalent to below 1.2
Cº per century.

11. The fastest warming rate lasting ten years or more since 1950 occurred over the
33 years from 1974 to 2006. It was equivalent to 2.0 Cº per century.

12. In 1990, the IPCC’s mid-range prediction of near-term warming was equivalent
to 2.8 Cº per century, higher by two-thirds than its current prediction of 1.7
Cº/century.

13. The global warming trend since 1990, when the IPCC wrote its first report, is
equivalent to 1.4 Cº per century – half of what the IPCC had then predicted.

14. Though the IPCC has cut its near-term warming prediction, it has not cut its
high-end business as usual centennial warming prediction of 4.8 Cº warming to
2100. Read more ..

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Roald J. Larsen (Top of page)  –  Google+  –  Roald J. Larsen (Blogspot)  –  Twitter  –  Facebook  –  Skype: roaldjl2009

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One thought on “Updated key facts

  1. Pingback: Explanations | Roald J. Larsen

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