Sentences with word «paleoclimate»

It's unfortunate that Mark failed to realise, that there are now 36 separate studies that all find a hockey stick from reconstructions of paleoclimate data.

For all the talk about CO2, there is a surprising lack of paleoclimate data on that peskly gas, but what I have been able to find is interesting.

We then examine climate impacts during the past few decades of global warming and in paleoclimate records including the Eemian period, concluding that there are already clear indications of undesirable impacts at the current level of warming and that 2 °C warming would have major deleterious consequences.

This is clear from paleoclimate reconstructions of the last few thousand years, and from glacial cycles over the last several million years.»

Further evidence from paleoclimate studies indicate that many other variables are involved.

They suggested this based on paleoclimate data from the Eemian period, when one degree of warming seems to have done just that.

Composed of 450 instrumental records from temperature stations sheltered from ocean - air / urbanization / adjustment biases throughout the world, a new 20th / 21st century global temperature record introduced previously here very closely aligns with paleoclimate evidence from tree rings, ice cores, fossil pollen and other temperature proxies.

While there is undoubtedly scope for statisticians to play a larger role in paleoclimate research, the large investment of time needed to become familiar with the scientific background is likely to deter most statisticians from entering this field.

This will facilitate the creation of targeted observational networks, provide test beds for reconstruction methods, and enable comparisons with paleoclimate model simulations.

Satellite and paleoclimate temperature records, for example, were exhaustively analyzed for consistency with the globalk warming hyothesis (they are).

The article also incorrectly equates instrumental surface temperature data that Jones and CRU have assembled to estimate the modern surface temperature trends with paleoclimate data used to estimate temperatures in past centuries, falsely asserting that the former «has been used to produce the «hockey stick graph»».

This of course brings me to my major complaint about using paleoclimate data as a way to help set limits on today's climate sensitivity.

We suggest that the best constraint on actual climate sensitivity is provided by paleoclimate data that imply a sensitivity 3 ± 1 °C for 2 CO2 [Hansen et al., 1984, 1993, 1997b; Hoffert and Covey, 1992].

A number of major studies looking at paleoclimate data come to the same conclusion.

I have no idea who, if anyone, is currently doing paleoclimate research in Hawaii.

These and other paleoclimate records indicate that rain belts shifted northward along with the thermal equator because of the global heat imbalance.

Moving toward a self - describing, open, and universal data archive system will encourage more complete use of existing paleoclimate information, enhance reproducibility, and provide increased transparency [Emile - Geay and Eshleman, 2013].

Now, the practical implication of paleoclimate work on the political scene.

Chapter 6 highlights the fact that there are now a large number of different paleoclimate studies which all lead to the same key conclusion that northern hemisphere mean temperatures in recent decades are likely unprecedented in at least a millennial timeframe.

Megadroughts in North America: Placing IPCC projections of hydroclimatic change in a long - term paleoclimate context

What paleoclimate researchers are trying to do is make objective estimates of how warm and how cold those past centuries were.

The fallacy of this logic emerged recently as numerous impacts of ongoing global warming emerged and as paleoclimate implications for climate sensitivity became apparent.

These frequency changes are consistent with other paleoclimate indicators from the tropical North Atlantic, in particular, sea surface temperature variations.

This post examines natural paleoclimate trends and simple characteristics of past and present climate cycles at different time scales.

Our approach is a significant advance on previous models, as we incorporate the lake index as a proxy for local climate, together with regional and global paleoclimate records.

Terminations I through V are significant paleoclimate events where the termination of the glacial state occurs, and Earth begins to change into a warm interglacial state.