Global warming Global warming , also called climate change , was environmental damage that resulted in planet s becoming hotter . On Earth . Earth was a notable victim of global warming . Sam Jones , who was from the 1990s , thought of global warming as things that were regular features of her world but not Fitz Kreiner ' s , who was from the 1960s . ( PROSE : " The Taint " ) Compared to the 21st century , Britain was on average three degrees colder in the Middle Ages . ( TV : " The Last Oak Tree " ) Upon taking Rose Tyler to see the Earth ' s destruction in the year 5 , 000 , 000 , 000 , the Ninth Doctor mentioned global warming as one of the things human ity thought would cause their extinction . ( TV : " The End of the World " ) In 2007 , Professor Mallingan and his team of scientists began draining the power of the icy planet of Isqar hoping that it would put an end to global warming on Earth . The Tenth Doctor came across Mallingan ' s plans and enlisted the help of one of his scientists to destroy his lab , saving Isqar . ( COMIC : " Cold War " ) Climate change was a great worry around this time . ( TV : " The Lost Boy " ) Santiago Jones ' father , an environmental activist , was arrested twice as a climate change conference . ( TV : " Death of the Doctor " ) Global warming existed on Pete ' s World on 2010 , which was exacerbated by the Cybermen coming through the breach leading to N - Space over the course of three years . Pete Tyler noted that the temperature increasing by two degrees over 6 months and the melting of the ice cap s wasn ' t caused " just [ by ] global warming " , but by the breach . ( TV : " Doomsday " ) When she visited the time of the Second Great and Bountiful Human Empire with the Tenth Doctor , 21st century native Donna Noble was fascinated that Earth was still populated , despite all the news articles stating the near end of the world , including global warming and the disappearance of bee s . ( TV : " Planet of the Ood " ) Agriculture was harmed by severe climate change , starting in 2040 with horrific storm conditions . New ways of growing food were developed . ( TV : " The Waters of Mars " ) Sometime before the 2050 , a group of scientists created a device to cool the Earth , but it was misused , ( TV : " The Korven " ) resulting in the Great Cataclysm . ( TV : " Aeolian " ) Rising sea levels caused by global warming flood ed the Netherlands , forcing the Dutch people to become refugees . Later in the century they founded a new homeland on an island in the Atlantic Ocean , which they named the New Dutch Republic . ( PROSE : " St Anthony ' s Fire " ) As a stop - gap solution to global warming , a device called the Great Solar Shield was designed in the 21st century to stall the effects of global warming by partially blocking off the sun . When the Shield broke apart because of the Tenth Doctor ' s efforts to stop the Silhouettes from attacking Earth , the Doctor told Martha Jones that humanity became up with a more permanent solution a few years afterwards . ( COMIC : " Sunscreen " ) By 2099 , the governments of Earth , in answer to global warming , had taken vast sections of the Arctic and Antarctic and placed them inside huge domes called Snowglobe s . ( PROSE : " Snowglobe 7 " ) In the 23rd century , three - quarters of the planet ' s landmass was drowned by water . Humans built islands and colonised parts of the oceans for research and other uses . London was totally flooded . ( GAME : " TARDIS " ) Venice prepared to finally submerge into the waters of the Laguna . ( AUDIO : " The Stones of Venice " ) By the 52nd century , winter s never occurred due to global warming . ( PROSE : " The Frozen " ) On other planets . Global warming on Flydon Maxima led to an increase in water levels , rising above the previous 88 % water surface coverage . This led to the renaming of the planet as " Despair " and an evacuation , mainly to Flydon Minima . Others adapted to living in floating cities , surviving on fish , seaweed and rainwater . ( PROSE : " The Depths of Despair " )