Sentences with phrase «of past climate»

Studies of past climate changes suggest the land and oceans start releasing more CO2 than they absorb as the planet warms.
But the record of past climates certainly makes it likely.
I disagree with your statement that science has a good understanding of past climate changes and their causes.
By investigating the regional - scale patterns of past climate variability, the study helps to understand and quantify the processes that cause climate to change.
Warming can be the result of a number of factors, so that the cause of past climate change is not necessarily implicated in current climate change.
, gather indicators of past climate conditions, and use biochemical markers to determine the gender and health of the animals that left them behind.
In this way, corals can serve as archives of past climate conditions.
The real concern lies with increase of both carbon dioxide emissions and temperature that can not be predicted using the models of past climate fluctuations and patterns.
So, the researchers compared model simulations of past climate against their newly - created reconstruction.
Despite their importance, however, the extent of past climate fluctuations in the tropical oceans is still poorly understood.
Is it crazy to expect tiny pockets of natural communities to hold evidence of past climate change?
Thus, an estimate of climate sensitivity from past data requires an estimate of the magnitude of the past climate changes and of the radiative forcings causing the changes.
Since D - O events are a fairly common feature of past climates, there certainly is precedent.
This provides a transfer function that enables the proxies to be used as predictors of past climate where proxy data are available in the absence of direct temperature measurements.
Studies of past climates usually point to the high end of this range, as do climate models.
Before that, we have scattered, sparse records using instruments of questionable accuracy and «stories» of past climate warming and cooling periods.
Like marine sediment cores, an ice core provides a vertical timeline of past climates stored in ice sheets and mountain glaciers.
Ice sheets contain a record of hundreds of thousands of years of past climate, trapped in the ancient snow.
How do we make decisions in a world where our experience of past climate is not necessarily a good guide to the future?
A new paper adds another piece of the puzzle to our understanding of past climate change.
The reliability of models can be estimated by comparing model - climates with the present climate, with reconstructions of past climates, and with each other.
Some studies of past climate, however, point to climate sensitivities of 6 °C or more.
There is a great opportunity to use our knowledge of past climate change to test and improve climate models.
Confidence in the understanding of past climate change and changes in orbital forcing is strengthened by the improved ability of current models to simulate past climate conditions.
«USING PALAEO - SCIENCE TO UNDERSTAND ClIMATE CHANGE IN AUSTRALIA... As the geographic coverage, time resolution and detail of palaeo - climate records have improved, it has become possible to identify the effects of past climate variations on high impact events such as fire....
So in that way, the streaks might serve as indicators of whether ice may have been present at the time of an impact, which could lend insight into reconstructions of past climate on Mars.
Scientific analysis of past climates shows that greenhouse gasses, principally CO2, have controlled most ancient climate changes.
«Testing the Fidelity of Methods Used in Proxy - Based Reconstructions of Past Climate
Maybe the simpler explanation would have been easier to parse, but the more complex interpretation also points towards the potential for a richer understanding of past climate dynamics in a range of boundary conditions.
Around the 13th minute in the recording, we shift to discussing how studies of past climate help build understanding of human - driven climate change and the built - in variability in the climate system that can occasionally produce extraordinarily potent droughts and floods.
«deficiencies in a match of models vs. observations (whether a forecast, or a simulation of a past climate event) may not be entirely due to problems inherent within the model, but a problem in the experimental setup, or at least a difference in what the modeler was trying to answer.»
«The reconstruction of past climate reveals that recent warming in the Arctic and in the Northern Hemisphere is highly inconsistent with natural climate variability over the last 2000 years.»
Thomas Crowley (now in Edinburgh) has sent me a note essentially challenging you to develop your own time series [of past climate patterns](kind of a «put up or shut up» challenge).
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