Changes in Britain's climate could trigger the loss of vital coastal communities as rising sea levels encroach ever further inland. In a new disaster movie, Flood, disturbing images depict London disappearing beneath the waves.

Global warming is one of the greatest threats facing mankind - a clear and present danger the world is gradually uniting to fight. Learn more about the basics with this gallery from Conservation International.

From fragile coral reefs to diverse indigenous peoples, some of the world's most spectacular natural wonders are feeling the heat of climate change - with potentially catastrophic results, as these images of our vanishing treasures reveal.

Climate change poses an unprecedented threat to the world and its wildlife, from already endangered species to the actual landscape itself. Some of the planet's most breathtaking features now face an uncertain future, as this gallery from Conservation International testifies.

In the event of total climate meltdown, break open a copy of the Global Warming Survival Handbook. The official Live Earth companion, it contains everything you need to know to keep yourself alive in a climate apocalypse.

In the fight against global warming, some of Hollywood's brightest stars have been setting a shining example. Find out which celebrities have been using their fame and fortune to help halt the effects of climate change.

Alternative power in the truest sense, politicians around the world have been putting their electoral muscle to good use in the battle to combat climate change. Find out who in this gallery of leading political lights.

Whether they're push-pedalling for legislative change, or diving headfirst into environmental issues, sports stars are increasingly ploughing their energy into saving the planet. Find out which sports stars are in the environmental pole position.

Metropolises may be the traditional homes of smokestacks and smog, but a growing number of urban oases are going to great lengths to green up their acts. How environmentally friendly is your city?

The UK's weather has gone from mild to wild - and it's getting steadily wilder. See the extreme weather conditions already occurring in the UK and set to become increasingly common as the effects of climate change take hold.

MSN presents a gallery of the top 10 illegal wildlife crime items as seized by HM Customs and Excise in the UK between 2006-2007.

MSN's environmental blogger discusses the burning issues that are affecting our planet.

Catch up on what the biggest names in showbiz have been doing to help save the planet right here, right now in June Sarpong's Live Earth blog.

Learn more about global warming - measurable increases in the average temperature of Earth's atmosphere, oceans and land masses - with MSN Encarta.

Have you noticed the effects of global warming? Are you changing your lifestyle to help save the planet? Is recycling overrated?