Likewise, Parliament's "motivation" in passing the law is irrelevant. An example is environmental legislation. The Constitution does not provide the Commonwealth Parliament with any power to control the environment or its use. Nonetheless, a very broad-ranging environmental protection Act could be passed relying on a combination of powers such as interstate and international trade, corporations, taxation, foreign affairs and so on. The law can be supported by those powers although Parliament intended it to be an 'environmental law'. Particularly in the last two decades, many Acts of very wide-ranging effect have been passed on just these bases, in fields as diverse as environment protection, privacy, and anti-discrimination, fields in which the Commonwealth has no "direct" power.