mikwut wrote:DrW
Can you please be more precise in defining your words. In your initial post and title you use the word "Anthropocene" which is defined as "relating to or denoting the current geological age, viewed as the period during which human activity has been the dominant influence on climate and the environment."
In response to your request for a definition of terms, I suggest the following:
Global Warming: Increase in the average tropospheric temperature of the Earth due to increased concentrations of green house gasses (GHGs) in the atmosphere.
Climate Change: Long term changes in the climate of the Earth, or regions of the Earth, including:
- Global Warming;
- Changes in precipitation patterns;
- Changes in sea level and ocean current patterns;
- Changes in humidity and wind patterns and,
- Changes in the frequency of severe weather events.
DrW wrote:My 'disaster facts', as you refer to them, are taken from government agency and government watch dog organization reports.
mikwut wrote:Right, but what do they have to do with "climate change" that doesn't include human activity as you say this thread is not about?
According to the definitions provided,
Climate Change includes both anthropogenic (e.g. fossil fuel use) and non-anthropogenic (e.g. volcanic) sources of GHG. I used the term
Climate Change because I wanted to avoid the inevitable argument from climate change deniers that global warming is not anthropogenic. Looks as though I was a bit overoptimistic in that regard.
mikwut wrote:Climate change is so general a term as to make your thread meaningless if it can just refer to the changing of the seasons.
This comment reflects a poor understanding of the term
Climate Change. If you don't like my definition above, by all means look it up for yourself. However, nowhere will you find a definition of climate change from a credible source that refers to a change in seasons.
DrW wrote:Now, if you wish to discuss anthropogenic global warming, I would be glad to do so, -----
I would assume that, since you quoted the IPCC Fifth Assessment (quite selectively I might add), you would see as credible the information that they provided on the subject of anthropogenic global warming. If you will take a look at
Chapter 8: Anthropogenic and Natural Radiative Forcing, you will see the conclusions of the IPCC, stated right up front in the Executive Summary, in no uncertain terms, that recent global warming is due mainly to anthropogenic sources of GHGs.
IPCC wrote: Executive Summary
It is unequivocal that anthropogenic increases in the well-mixed
greenhouse gases (WMGHGs) have substantially enhanced
the greenhouse effect, and the resulting forcing continues to
increase.
As to a proven linkage between global warming and severe weather events, the IPCC claims that there is insufficient data. Fine, I have no problem with this interim conclusion. However, there are certainly well understood mechanisms that link increased energy in the atmosphere (heat) to increased storm intensity. And the excellent severe weather forecasting we depend on here uses models that require measures of ocean and atmospheric temperature to predict the severity of tropical storms. The correlation between ocean surface temperatures and storm severity is positive. (Hurricanes utilize the latent heat of vaporization as fuel.)
And this is another reason that I used the term
Climate Change instead of
Global Warming in my posts on this thread. Climate Change, by definition, includes severe weather events, regardless of whether the cause can be linked to human activity, or not.
You made some good points. I trust that I have adequately addressed them.