IPCC Climate Change Report Leak: The Fifth Assessment Report (AR5) from the UN Intergovernmental Panel On Climate Change (IPCC) is due next month, but there have already been leaks from the report.

Leaked drafts of the study seen by Reuters of say it is at least 95 percent likely that human activities - chiefly the burning of fossil fuels - are the main cause of warming since the 1950s.

That is up from at least 90 percent in the last IPCC climate change report in 2007, 66 percent in 2001, and just over 50 in 1995, which counters the arguments by a small minority of scientists that natural variations in the climate might be to blame.

The possible effects of Climate Change and Global warming are animal and plant extinction, coastal flooding, and droughts.

Reto Knutti, a professor at the Swiss Federal Institute of Technology in Zurich, said: "We have got quite a bit more certain that climate change ... is largely manmade.  We're less certain than many would hope about the local impacts."

As for how Climate Change and Global Warming will affect nature, Knutti says that we can't really predict it: "You can't write an equation for a tree."

The IPCC Climate Change Report could come under scrutiny after the panel admitted a mistake in the 2007 study that wrongly predicted that all Himalayan glaciers could melt by 2035.  According to experts, the error far overestimated the melt and might have been based on a misreading of 2350.

The IPCC Climate Change Report Leak says there is "medium confidence" that the slowing of the rise in temperatures is "due in roughly equal measure" to natural variations in the weather, and to other factors affecting energy reaching the Earth's surface.  Scientists believe causes could include: greater-than-expected quantities of ash from volcanoes, dimming sunlight; a decline in heat from the sun during a current 11-year solar cycle; more heat being absorbed by the deep oceans; or the possibility that the climate may be less sensitive than expected to a build-up of carbon dioxide.

Watch IPCC Climate Change Report Here: