Fenestra In histology, fenestrÃ¦ are small pores in endothelial cells that allow for rapid exchange of molecules between sinusoid blood vessels and surrounding tissue. These pores may enlarge and contract at the action of various stimuli such as noradrenaline.FenestrÃ¦ is a Latin word that means window.
Global Warming. An issue of major concern is the possible effect of the burning of fossil fuels and other contributers to the increase of carbon dioxide in the atmosphere. The action of carbon dioxide and other greenhouse gases in trapping infrared radiation is called the greenhouse effect. It may measurably increase the overall average temperature of the Earth, which could have disastrous consequences.
global warming and climate change are terms for the observed century scale rise in the average temperature of the earth s climate system and its related effectsmultiple lines of scientific evidence show that the climate system is warmingcientific understanding of global warming is increasing the intergovernmental panel on climate change ipcc reported in 2014 that scientists were more than 95 % certain that global warming is being caused mostly by increasing concentrations of greenhouse gases and other human anthropogenic activities