Environmental pollution is not a new phenomenon, but it remains the greatest global problem facing humanity and major environmental cause of morbidity mortality. Human activities related to urbanization, industrialization, mining exploration are at forefront pollution. Both developed developing countries share this burden, although awareness stronger laws in have done more protect their environ...

environmental crisis of the planet have caused a sever anxiety among people, some blame population growth, and other new technologies for the ongoing crisis. but, it is believed that misuse of technology, greed, and obnoxious attitude of man are the main causes of environmental crisis. in this paper, the causes of the crisis are elucidated, and a remedy, is proposed, that is to encourage enviro...

Because tobacco smoking is a potent carcinogen, secondary causes of lung cancer are often diminished in perceived importance. The goal of this review is to describe the occurrence and recent findings of the 27 agents currently listed by the International Agency for Research on Cancer (IARC) as lung carcinogens. The IARC's updated assessments of lung carcinogens provide a long-overdue resource f...