Assessment Re-
port (AR4).
Topic 1 summarises observed changes in climate and their ef-
fects on natural and human systems, regardless of their causes, while
Topic 2 assesses the causes of the observed changes. Topic 3 pre-
sents projections of future climate change and related impacts un-
der different scenarios.
Topic 4 discusses adaptation and mitigation options over the
next few decades
/media/loftslag/IPPC-2007-ar4_syr.pdf
1 Introduction ................................................................................................ 7
2 Study area and data ..................................................................................... 7
2.1 River basins .......................................................................................... 7
2.2 Streamflow data
/media/vedurstofan/utgafa/skyrslur/2015/VI_2015_007.pdf