Climate change is a significant and emerging threat to public health and community social cohesion and may get worse as planet warms, oceans expand and the sea level rises. Extreme weather events such as floods and droughts have become more frequent and intense influencing the way societies must look at protecting vulnerable populations such as those in humanitarian situations, those economically disadvantages, the young, elderly, women and girls and those with or predisposed to chronic illnesses including mental health, emergency workers, first responders and the homeless.