Observational evidence indicates that recent regional changes in climate, particularly temperature increases, have already affected a diverse set of physical and biologic systems in many parts of the world,
t is now widely accepted that the earth’s temperature is increasing, as confirmed by warming of the oceans, rising sea levels, glaciers melting, sea ice retreating in the Arctic,and diminished snow cover in the Northern Hemisphere.Furthermore, changes are also occurring in the amount, intensity, frequency and type of precipitation, and the increase of extreme weather events, like heat waves, droughts, floods, and hurricanes.1,2 The recent Working Group I Report of the Intergovernmental Panel on Climate Change (IPCC) states “most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the obser
Climate Change, Migration, and Allergic Respiratory Diseases: An Update for the Allergist
