institute's book Why Scientists Disagree About Global Warming and a companion DVD to all 200,000 K-12 science teachers in the U. S., with a cover letter giving a link to an online course planning guide. "The material is not science and was intended to confuse teachers", according to the National Center for Science Education. Privatization of government services The institute is a critic of current federal, state, and local budgets and tax codes. Several of the institute's budgetary views include privatization of federal services to a competitive marketplace, changing the tax code to a more simplified version of the current code, and implementing Taxpayer Savings Grants. In 1987, the institute advocated for tenant ownership of the Chicago Housing Authority's Cabrini-Green Homes public housing complex through a cooperative or condominium conversion. In 1990, the institute advocated for lower taxes in Illinois to foster job growth. The institute advocated for the privatization of Illinois' toll highway system in 1999 and 2000. In 2008, the institute opposed state subsidies and tax credits for local film productions, saying the economic benefits are less than the incentives. Education The institute supports charter schools, education tax credits to attend private schools, and vouchers for low-income students, as well as the Parent Trigger reform that started in California. The institute supports the introduction of market reforms into the public K–12 education system to increase competition. In 1994, the institute criticized the Chicago Public Schools' reform efforts and advocated privatization of public schools and school vouchers. Healthcare The institute advocates for free-market reforms in healthcare and opposes federal control over the healthcare industry. Heartland supports Health Savings Accounts (HSAs), replacing federal tax deductions for employer-based healthcare with a refundable tax credit to allow individual choice over health insurance, removing state and Federal healthcare regulations aimed at providers and consumers of healthcare, and reducing litigation costs which are associated with malpractice suits. In 2010, Heartland published the 66 page book, The Obamacare Disaster, by Peter Ferrara, which opposed the Patient Protection and Affordable Care Act. In 2015, the institute filed an amicus curiae brief in support of the petitioner in King v. Burwell, a Supreme Court case challenging income tax subsidies to those who enroll in health insurance under the Patient Protection and Affordable Care Act via the federal as opposed to the state health insurance exchanges. Hydraulic fracturing The institute advocates for hydraulic fracturing (aka "fracking"), a well-stimulation