The article referred to below is a “must read” for the multitude of Americans that are so in love with and/or dependent on travel by aircraft that they ignore its great contribution to global warming. See it at:
This article explains why air travel is not about to be rescued by any of the technological developments that have been envisioned, to date. So, if you or your institution of employment are “frequent flyers”, you will be one of the major contributors to future global warming and there is no remedy for that offense that is either in the works or in the planning stage.
Sorry, but the Earth is, indeed, a finite place that does not have the ability to rid itself of all pollutants. Concerning that of CO2, we are already well past that limit with little chance of its removal. In case you don’t know, travel by aircraft produces a lot of CO2 and is doing so more every year. Surface transport alternatives are much better with respect to addressing this problem but, of course, that would require changes in lifestyles that might not be considered worthwhile for many.
Unfortunately, this message applies to everyone, even the extensive Studies Abroad Programs of St. Olaf College in Northfield Minnesota, for example, that apparently thinks their CO2 emissions are of an ethical type that don’t matter. It is most distressing that even our institutions of higher education need to be told this. The reaches of the airline travel and the fossil fuel industries are, indeed, long and strong constituting a literal “death grip” on American society.
ericgrimsrud 
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