The organization convinces and helps governments and other political bodies to adopt, enforce, strengthen and/or change policies, guidelines and laws that affect biodiversity and natural resource use. It also ensures government consent and/or keeps their commitment to international instruments relating to the protection of biodiversity and natural resources. In 2012, David Nussbaum, Chief Executive of WWF-UK, spoke out against the way shale gas is used in the UK, saying: "...the Government must reaffirm its commitment to tackling climate change and prioritise renewables and energy efficiency." WWF's strategy for achieving its mission specifically concentrates on restoring populations of 36 species (species or species groups that are important for their ecosystem or to people, including elephants, tunas, whales, dolphins and porpoises), and ecological footprint in 6 areas (carbon emissions, cropland, grazing land, fishing, forestry and water). The organization also works on a number of global issues driving biodiversity loss and unsustainable use of natural resources, including finance, business practices, laws, and consumption choices. Local offices also work on national or regional issues. WWF works with a large number of different groups to achieve its goals, including other NGOs, governments, business, investment banks, scientists, fishermen, farmers and local communities. It also undertakes public campaigns to influence decision makers, and seeks to educate people on how to live in a more environmentally friendly manner. It urges people to donate funds to protect the environment. The donors can also choose to receive gifts in return. Since 2008, through its Global Programme Framework (GPF), WWF has said it is concentrating its efforts on 13 global initiatives:   WWF publishes the "Living Planet Index" in collaboration with the Zoological Society of London. Along with ecological footprint calculations, the "Index" is used to produce a bi-yearly "Living Planet Report" giving an overview of the impact of human activity on the world. In 2019, WWF and Knorr jointly published the Future 50 Foods report identifying "50 Foods for Healthier People and a Healthier Planet". The organization also regularly publishes reports, fact sheets and other documents on issues related to its work, to raise awareness and provide information to policy and decision makers. The German public television ARD aired a documentary on 22 June 2011 that claimed to show how the WWF cooperates with corporations such as Monsanto, providing sustainability certification in exchange for donations– essentially greenwashing. WWF has denied the allegations. By encouraging high-impact eco-tourism, the program alleges that WWF contributes to the destruction of habitat and species it claims to protect while also harming indigenous peoples.