Earth Hour is a worldwide movement for the planet initiated by the Australian World Wide Fund for Nature (WWF) in Sydney in 2007. It was started as a lights off event to make stand against climate change.
In the past few years, Arcus Ecological Association from Bačka Topola organized art contest for primary school students on the occasion of the Earth Day.
Since 2011, The International Waterbird Census (IWC) in Serbia is coordinated by Bird Study and Protection Society of Serbia. The IWC is coordinated by Wetlands International and it is organized every year in most countries of the world.
Since 2004, BirdLife Hungary (MME) has been organizing the National Eagle Census in collaboration with national park directorates and other nature conservation NGOs, in order to monitor the wintering population of birds of prey species in Hungary.