OW DOES WILLIAM MCDONOUGH AND MICHAEL BRAUNGART UNDERSTAND SUSTAINABILITY?

I am ordering this job because I Am not English first language, I do have 2000 words already done. so your help in this essay should be just a complement of this first part essay. your part will be adding 1500 words as a complement of the my work. Please do around 500 words in deep studying around WILLIAM MCDONOUGHs sustainable concept design in NASA sustainable base buildings; and more 500 words criticising their concepts in sustainable principles and applications!!!!