The phrase "calls for efforts" is correct and can be used in written English.
It means that a situation or task requires a certain level of effort or action to be successful or completed. Example: The current economic crisis calls for efforts from all sectors of society to come together and find solutions.
Among other things, this report calls for efforts to improve the status of women in poor countries, which it says is central to limiting the spread of AIDS.
The new strategy calls for efforts to more than triple the number of foreign visitors to Japan, to 25 million by 2020, and create new jobs in a bid to support the country's ailing tourism industry.
This calls for efforts by stakeholders in polytechnic education in setting biased policy interventions to stimulate entrepreneurship among female students.
Rebuilding the human nature relationship in the present day calls for efforts that go beyond the local level toward cross-scale, connected and coupled social ecological systems.
Education is consistently identified as one of the key strategies for facilitating sustainable development; the required shift in the thinking, values and actions of individuals and institutions calls for efforts to make sustainability concerns a central theme of all education.
ABUJA, Nigeria (Thomson Reuters Foundation) - A group of Nigerian schoolgirls abducted by the Islamist group Boko Haram exactly two years ago have been identified in a new video, raising hopes that they are all alive and renewing global calls for efforts to find them.
Andrew Whyte Northwood, Shrewsbury Gays face death in Uganda 'purge' Inflaming populist opinion in Africa against homosexuals has already led to murder ("Ghana official calls for effort to 'round up' suspected gays" 22 July).
The Queens borough president, Helen M. Marshall, called for efforts to continue.
For years, they have called for efforts to reduce the consumption of sodas, especially by children.
But they have also called for efforts to increase production, efficiency and consumption.
The "Tibet Work Conference" predictably called for efforts to combat "penetration and sabotage" by Tibetan separatists.
