This is not to say that such permanent changes do not exist, or that such changes are not identifiable from the dataset the authors use.
Although EPA chief Scott Pruitt does not deny climate change exists — a contrast from other members of Donald Trump's Cabinet — he questions the role humans play in this drastic environmental shift.
The government is pinning a large portion of its emissions cuts on "other" means of reductions, including technology changes that do not yet exist.
It also requires a testing paradigm in which controlled manipulations can be applied, and where unknown changes (differences) do not occur (exist).
That is why, says Sunai Phasuk, a Laos specialist at Chulalongkorn University in Bangkok, the conditions for peaceful political change simply do not exist in Laos.Nor do government opponents expect much support from abroad.
If any such topological changes do exist, it shall be attempted by configuring themselves into the network [1].
From that it is conceivable that (hypothesized) global RNFL changes either do not exist, or that global RNFL changes are too subtle to be detected with conventional TD-OCT or that the observation period was too short.
These factors determine why programmes implemented at the district level may or may not achieve their expected outcomes, especially in those healthcare institutions where the conditions necessary for such a change do not exist.
Political leaders like Donald Trump don't even recognize climate change exists.
"Do you believe that climate change exists, and that it's a man-made problem?" former Obama adviser David Axelrod asked Paul at the event, which was held at the University of Chicago Institute of Politics (via the Washington Post).
Its Tea Party agenda setters tell us climate change doesn't exist, that rape doesn't cause pregnancy, and that the Second Amendment guarantees Americans the right to own personal assault weapons.
