The Drone Journalism Society sent drones to Nepal post the devastating earthquake in March this year to collect data about the damage. This became a milestone in the world of journalism as for the first time in the history of journalism a 3D model was created about any damage caused by a natural disaster to help world organisations in disaster management.

The reach of drones in investigative journalism can be best established by the infamous case of the Columbia meat packing firm. In 2012, a camera drone hovering over the Trinity River near Dallas noticed spots of blood-red spots in the River. It turned out that pig blood was being emptied via an underground pipe from the firm located on a creek that feeds into the river. The company was indicted on 18 criminal counts and a trial is pending.

In July 2014, Nimrod Kamer travelled to Nassau with a drone to investigate a leak by Edward Snowden that suggested that the NSA is listening to phone calls made in the Bahamas.

The Daily Dot used a Phantom drone for first hand footage of a building that collapsed in Harlem on March 2014. This was the first live footage of manmade disaster in the world.

Since the use of drones for journalism, drone journalism and war journalism go side by side. We saw its glimpses during the Thailand and Ukraine protests that shook the roots of world democracy. Russia Today explored Unmanned Air Vehicles' use for several years and recently covered protests in Turkey and Ukraine to test the technology.

The University of Nebraska - Lincoln's Drone Journalism Lab used drones to cover the devastating droughts that hit the Midwest in 2012.

The winter flooding in the UK provided the latest opportunity to test the capabilities of UAVs for video news gathering. A DJI Phantom 2 quadcopter filmed the floods of the River Severn in and around Worcester, capturing the scale of the floods.

60 minutes used a drone to get some otherwise hard-to-get footage of the half-sunken Costa Concordia, a passenger ship that ran aground in Tuscany.

The applications of drones in journalism took an amazing turn when drone maker DJI demonstrated a spectacular video of its Phantom drone flying into a volcano in the Tanna island of Vanuatu.

Now it's time for a sneak peek into the future of drone journalism. Berkeley Techraking saw some of the most fascinating ideas which if put to pieces would bring about a revolution in the world of journalism. This story is about the winner of the show and his idea. The winner Drone Hound, led by Reveal senior editor Andrew Donohue proposed a technology that would allow the drones to collect air samples from high polluted areas and transmit the data to mobile app. The app would notify the users of the effected community when the pollution level of that area reaches the notified level. It would be an effort to control the pollution by transmitting data over space and time.