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.
Every year, from its very beginning, Arcus Ecological Association takes part in organization of series of popular science lectures. For years, these lectures are part of Topola’s Winter Nights, whose main organizer is Culture Centre of municipality Bačka Topola.
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.