"existing effort" is grammatically correct and can be used in written English.
It refers to effort that already exists or is currently being made. Example: The government is hoping to build upon the existing effort of community volunteers to improve the local park.
Google executives said Monday that they were not familiar with the existing effort.
The existing effort, 80 Plus, sets an 80percentt efficiency standard as a goal.
For each of the countries, the report lists the actions, from training to financing, needed to augment the existing effort.
The Google proposal is similar in its intent to an existing effort by the electric utility industry to offer computer makers financial incentives for designing more efficient power supplies for personal computers.
The White House has opposed the amendment, with officials saying they fear it could "threaten to confuse and undermine" existing effort to get allies, China and other countries to impose other sanctions already in the pipeline.
In room after room, chemical engineers and other experts are rushing to add to the number of chemicals that can be screened in a small sample of blood or urine so that the existing effort to monitor chemical exposure in a cross section of Americans can be expanded.
One member voted in opposition to continuing the existing efforts.
Mr. Bernanke noted that the scale of the Fed's existing efforts was unprecedented.
Republicans charge that the central bank's existing efforts have gone too far, sowing future inflation.
They argue that the central bank's existing efforts are not helping, and that new efforts could have negative consequences.
She said this built on existing efforts that were unrelated to the outcome of the UK's EU referendum.
