There's an advertisement running on radio in which they start by asking the listener to imagine the devastation that a major earthquake would cause to a city like Pretoria and then they state that the world needs to unite to tackle climate change. The advertisement is for some UN conference about climate change.
To my knowledge there is no relationship between earthquakes and climate change.
A 2009 paper by Bill McGuire, professor at University College London, says “observations suggest that the ongoing rise in global average temperatures may already be eliciting a hazardous response from the geosphere.”
“When the ice is lost, the earth’s crust bounces back up again and that triggers earthquakes, which trigger submarine landslides, which cause tsunamis,” McGuire told Reuters. (McGuire’s 2009 paper notes that such effects will be much more pronounced in areas with significant ice cover, in other words, at higher latitudes.)
Melting ice masses change the pressures on the underlying earth, which can lead to earthquakes and tsunamis, but that’s just the beginning. Rising seas also change the balance of mass across earth’s surface, putting new strain on old earthquake faults.
Scientists have known for some time that climate change affects not just the atmosphere and the oceans but also the earth’s crust. These effects are not widely understood by the public.
“In the political community people are almost completely unaware of any geological aspects to climate change,” said McGuire.
http://www.trust.org/alertnet/blogs/climate-conversations/is-climate-change-increasing-earthquakes