A spokeswoman for the Woodland Trust said: "Whilst the planting of two million trees is a great contribution towards increasing the UK's minimal native woodland cover, it is important that this isn't seen as a token gesture in what could potentially see the loss and fragmentation of existing woodland habitats, which are of far higher conservation value and in some cases irreplaceable.
Although death is seen as a natural phenomenon, part of the normal order of things, it is often an ordeal and a tragedy for those who witness it, as death is not merely the end of a life, but also the end of an existence, the loss of a unique individual who is special and irreplaceable.
Mr. Lomax saw folk music and dance as human survival strategies that had evolved through centuries of experimentation and adaptation; each, he argued, was as irreplaceable as a biological species.
Are you sure you're as irreplaceable as you think you are?
As Olympus has a 70 percent market share in endoscopy, the scandal caused anxiety and concern among the medical profession, which sees Olympus endoscopes as irreplaceable.
Translators used to scorn this, seeing their human judgment as irreplaceable.
"We view it as irreplaceable talent," Mr. Peel said.
The Chiluba government was notably corrupt, and the president appeared to regard himself as irreplaceable.
She also urged people not to see men doing childcare as "second-class mothers" but rather as "irreplaceable first-class fathers".
Of all the jaw-dropping losses caused by this hack, the most gut-wrenching is this one: Along with the emails and documents the hackers erased, Honan also saw every photo from the first year of his new daughter's life vanish from his hard drive, as well as "irreplaceable pictures of [his] family... and relatives who have now passed from this life".
