The answer to the crossword is 'GREENING' which refers to the environmental movement of the United States. The term 'greening of America' was coined by Charles A. Reich in his 1970 book of the same name. It refers to the growing awareness of environmental issues and the need for sustainable practices. The greening of America has become a major focus of the US government, businesses, and citizens alike, as they strive to reduce their environmental impact and create a healthier planet.