Sentences with phrase «historical ice core data»
A combination of historical ice core data and air monitoring instruments reveals a consistent trend: global atmospheric methane concentrations have risen sharply in the past 2000 years.
https://earthobservatory.nasa.gov/ Not exact matches
It's OK to state that, «The common belief that carbon dioxide is driving climate change is at odds with much of the available scientific data: data from weather balloons and satellites, from ice core surveys, and from the historical temperature records» when this is clearly untrue.
>... there are still ways of discovering the temperatures of past centuries,... tree rings... Core samples from drilling in ice fields... historical reconstruction... coral growth, isotope data from sea floor sediment, and insects, all of which point to a very warm climate in medieval times.
The range of most historical ocean data include the ice core data, so no problems with them.
Thus if one plots all the minima of the different historical measurements, that gives a better impression of the real «background» CO2 level than the averages: see The same for ocean data and coastal data: all are around the ice core level.
Nowadays, a common check is to see how the models check with historical records: ice core samples have given us enough data about the ice ages to be able to run the models in «ice age mode» — and they seem to agree very well with the data.
These have been observed in the paleo record including ice core data plus many historical references, so are very likely to be real (unlike unicorns, which have only been sighted after a night of heavy drinking).
I only disagreed with the ice core / historical data points, after several years of discussions with the late Beck.
In such case for proper scientific analysis it is better to rely on good quality data where available and proxy data for historical reconstructions — like for instance satellite data & ice core data.
In 1965 British climatologist Hubert Horace Lamb examined historical records of harvests and precipitation, along with early ice - core and tree - ring data, and concluded that the MWP was probably 1 — 2 °C (1.8 — 3.6 °F) warmer than early 20th - century conditions in Europe.
Ice core and historical data.
That the historical data in Beck «s compendium and the Ice Core data published before 1985 pointed out by Jaworowski and Segalstad are all too high and should be tossed out.
Historical records from early settlements reveal glacier boundaries, as does ice core data taken by drilling down into the annual layers of ice that make up glaciers.
The message from the historical data — records, tree rings, ice cores, lake sediments and so on — is that global warming is linked to fossil fuel - burning and to rising levels of greenhouse gases in the atmosphere.
About Beck's historical data vs. ice cores: I don't want to (re) start the discussion of Beck's data here.