All 6 Uses

environment
in
Into Thin Air
(Edited)

The government of Nepal recognized that the throngs flocking to Everest created serious problems in terms of safety, aesthetics, and impact to the environment.
Chpt 2 *

environment = the natural world
Christened the Sagarmatha Environmental Expedition, Fischer's team removed 5,000 pounds of trash from the mountain-which was very good for the landscape and turned out to be even better public relations.
Chpt 6

environmental = relating to the natural world
Some of my teammates fared even worse than I in the meager air and unhygenic environment.
Chpt 6

environment = surrounding conditions
In the spring of 1994 he worked for Fischer on the Sagarmatha Environmental Expedition and reached the top of Everest a second time, again without bottled oxygen.
Chpt 9

environmental = relating to the natural world
The spent oxygen bottles blighting the South Col have been accumulating since the 1950s, but thanks to an ongoing litter-removal Program instigated in 1994 by Scott Fischer's Sagar matha Environmental Expedition, there are fewer of them up there now than there used to be.
Chpt 12
"I don't want to carry the telephone," Lopsang later admitted, in part because it worked only marginally at Camp Three and it seemed even less likely to work in the colder, harsher environment of Camp Four.
Chpt 12 *

environment = surrounding conditions

Definitions:

(1) (environment as in: the environmental movement)
the natural world (life, air, water, land...) -- often used in reference to the impact of human technology
(2) (environment as in: her family environment)
surrounding conditions
in various senses, including:
- conditions in a location or geographic area -- as in "the desert environment"
- conditions that affect a particular activity -- as in "the learning environment"
- conditions that create a certain mood -- as in "a competitive environment," or "a romantic environment,"
- conditions that impact a particular computer system, subsystem, or program -- as in "the Windows environment"
(3) (meaning too rare to warrant focus)