Besides encouraging the use of the vernacular languages in schools, he gave particular encouragement to the education of girls.
Encouraging the use of native plants is not "radical," but wise.
It will improve miners' health by encouraging the use of the helmet respirators, he said.
But encouraging the use of tweets in schools has been dismissed by some commentators.
South Africa, Egypt and Burkina Faso are encouraging the use of the technology.
Sony launched a lawsuit days later, saying Mr Hotz was encouraging the use of pirated games.
Far from encouraging the use of subordinated debt, the Basle standards actually discriminate against it.
Such campaigns seek to accomplish goals like encouraging the use of seat belts, discouraging driving while intoxicated or promoting tolerance.
Encouraging the use of condoms – or condemning it – can greatly affect HIV prevalence rates in a community.
He welcomed campaigns encouraging the use of certified oil but said boycotting the industry was not the answer.
"None make sense," Sachs said, referring to European and American subsidy programs encouraging the use of biofuels.
