The issue of snow on top of Mount Kilimanjaro has been addressed earlier in the thread, snow was receding from 1920s on, even in periods of global average temperature decline.
The issue of "climate change" is a complicated one, which however relies on simplistic assumptions, and gross exaggeration in its more popular understanding, examples of which can be found in this thread.
Climate change is used as a shorthand for climate variations caused due to human activities.
The term "climate" as the IPCC uses it means the "weather averaged over a long period, typically 30 years". The weather as we know cannot be predicted more than a week in advance. The only thing that is predictable about the weather is variation. The long term variations of the weather at the global level have many known causes like ocean currents, salinity, regional differences in temperature,etc. which through their complex interaction, form the weather in a particular region. All this is famously summarized in the so called
butterfly effect. This illustrates how even a small change in the parameters of climate models can lead to wildly different outcomes.
Usually these complex interactions can be theorized only after the fact, as for example decline in temperatures caused due to la nina, but the arrival of an el nina event cannot be predicted. The IPCC now suggests that human activities have led to an increase in some greenhouse gases, which will lead to an increase in "global average temperatures". The evidence is that temperatures over the last 10 years have not risen, and appear to be influenced mostly by large scale weather influences like el nino and la nina.
The problem of course is that none of the models can be relied upon to work with any degree of accuracy, simply because as the "butterfly effect"(first observed in relation to the weather) suggests, missing even a minor variable means that the outcome will be wildly different. Approximations just do not work in relation to the weather.
The popular understanding of climate change is the higher the production of greenhouse gases, the higher the temperature, the more the variation in weather and/ or climate. The IPCC report only suggests that the "unexplained" variation in global average temperatures is likely to be due to human activities. There is a much larger variation that can be explained in terms of other weather events.
And the only mechanism through which a human influence on the climate is suggested is through an increase in global average temperatures, which would trigger other weather events. The global average temperature rise is nowhere in sight. Which means the local and regional climate variations cannot be explained due to human production of greenhouse gases.
What it amounts to is that yes there is climate change, but that change in weather trends(climate) is completely natural. The "unexpected" change, which is supposedly man-made change is unquantifiable and there is little evidence that human generation of some greenhouse gases (excluding the most important, water vapour) can explain these variations.
As Carl Sagan said: Extraordinary claims require extraordinary evidence.
