The Earth Day Network has an ambitious dream: to plant 7.8 billion trees by 2020.
The Queen celebrated her birthday by greeting well-wishers near Windsor Castle.
Dozens of tunnels have been found along the US-Mexico border in recent years, mostly in California and Arizona.
Comedian, actor and writer passed away following a short battle with cancer.
Tim Hetherington and Chris Hondros were killed by a mortar attack in the rebel-held Libyan town of Misrata.
Aerial photos of earthquake-hit towns in Ecuador show the extent of the damage as country buries its dead.
The royals duelled with lightsabers and hugged Chewbacca on the set of Star Wars Episode VIII.
The attack during the rush hour was the worst to hit Afghan capital since the 2011 suicide blast.
The 5,000-year-old World Heritage Site is one of the most popular tourists attractions in Turkey.
Queen Elizabeth II, Britain's longest-serving monarch, turned 90 on Thursday 21 April 2016.
The Pulitzer Prize for breaking news photography has been jointly won by Reuters and The New York Times for images of the refugee crisis in Europe and the Middle East.
Losing a crucial vote in the lower house of Congress on 17 April has brought impeachment closer.
IBTimes UK presents a round-up of the best photos of the bands, the fans and the installations at the first weekend of Coachella 2016.
The 7.8 magnitude earthquake has been described as the worst the country has seen since 1979.
Stark warning that America's national parks are in danger due to sea level rises.
Photographers capture all the action in the pool at the British Swimming Championships 2016 in Glasgow.
Prince William and Kate Middleton hiked up to the Buddhist monastery in Bhutan.
Two women died when the building in the popular Canary Islands tourist destination of Los Cristianos collapsed.
Aftershocks continue to rattle country after an earthquake killed nine people and injured more than 1,000.
Ivan Shamyanok lives in the Belarusian village of Tulgovich, on the edge of the exclusion zone around Chernobyl.
Montpellier is one of over 30 cities in France that has staged protests against the upcoming labour reform plans
Beginning on 13 April, the festival sees people douse each other in water, which symbolises spiritual cleansing in order to begin the new year free from impurities.
Prince William and Kate Middleton tried a spot of archery and darts in Bhutan.
Subterranean places are being opened to the public as part of London Transport Museum's Hidden London festival.
The holiday rental site selected different sets of winners, who stayed one night each in the underwater bedroom.
The makeshift camp of Idomeni is currently housing over 10,000 refugees, who have been there since February.
Thais and foreigners armed with water pistols and buckets kick-started the annual festival of Songkran, also known as the water festival.
Prince William and Kate Middleton are on an official visit to India and Bhutan from 10 to 16 April 2016.
The Feria de Abril (April Fair) is in full swing as revellers flock to Seville to celebrate Andalusian culture.
The theme of Gajan is satisfaction through pain, devotion and sacrifice, and winning the favour of Shiva.