You have been invited by the City of Chicago to be the curator of the next Chicago Architecture Biennial, which will focus on the environment. Your premise is that since there are multiple ways to interpret the environment, the exhibition will consist of four sub-themes. Each theme will present a range of contemporary and historical architectural concepts and projects, offering a different answer to the question where is the environment? Your task is to write the curatorial statement for this exhibition, which should consist of a topic sentence laying out a broader argument about the environment, and four sub-descriptions. The four sections should, as a composite, trace a larger arc or storyline as well as provide specifics. Each section should include a title that completes the phrase Environment as …, be about 200 words long, set out the key terms and projects to be exhibited, and tie back to the main concept in your topic sentence.