Plant production could decline as climate change affects soil nutrients
World of Warcraft is fading away
Stellar birth rate falling fast
PC shipments are on the decline
Maya empire decline accelerated by droughts and deforestation
Android smartphone market share declines slightly
Has Facebook started its inevitable decline?
Some dinosaurs were dying out before asteroid strike
Methane levels taper off – but why?
Report: Android slowly losing market share
Daily deal sites in decline
Foundation of ocean food chain in decline