Is Andy Revkin suggesting that airplane travel contributed to Stephen Schneider's death?

Planet-Scale Risk and the ‘Steve Schneider Memorial Exercise’ - Dot Earth Blog - NYTimes.com

I’ve been thinking a lot about Stephen H. Schneider lately. He was a source of mine on the two-way relationship between climate and people from the early 1980s until three weeks ago, when he died of a pulmonary embolism on a flight from Stockholm to London — part of his 3 million miles of relentless (and ultimately fatal) journeying to study or communicate the science of climate change and its significance for society. (Yes, that’s a lot of carbon; we remain very much in the fossil fuel age.)

San Francisco Medical Society | Pulmonary Embolism Caused By Blood Clotting on Airline Flights-A Legal Perspective

In conclusion, economy class syndrome, pulmonary embolism or deep vain thrombosis caused by air travel is a risk that the doctor and patient share anytime one boards an airplane. Simple preventive knowledge and the exercise of simple preventive techniques will minimize or eliminate the risks. However, it is incumbent upon the physician to recognize the potential in those patients that exhibit the risk factor