Global warming has led to many plants blooming ever earlier and also before honey bees emerge from hibernation, leading to fears of a long-term decline in pollination.
A combined research group centred at Munich's Technical University (TU) has carried out a study into how bees are dealing with the change in global temperatures.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/bees-climate-change-causes-concern
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/honey-bees
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/germany
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/europe