Global warming is, perhaps, the greatest challenge facing our planet, and the increase in the earth's temperature is one of the most widely discussed, and debated, issues in science - as well as politics. Global warming has a tremendous impact on biodiversity and climatic conditions of the planet. Several current trends clearly demonstrate that global warming is directly impacting on rising sea levels, the melting of ice caps and significant worldwide climate changes. After the industrial revolution, we can understand the vital role of how humans are the major cause of global warming through air pollution, since this, global warming acts directly by: increase in respiratory diseases, and water shortages and acts indirectly by: natural disasters, diseases, and diet and nutrition due to changes in agriculture production.
First off, humans don't have enough time to adapt to the high level of carbon dioxide in the atmosphere. Approximately 158 million Americans live in counties where air pollution exceeds national health-based standards. Rising temperatures increase ozone smog formation in many areas. Increasing levels of smog are associated with increased hospital admission rates and death for people with respiratory diseases such as asthma, and worsens with health of people suffering from cardiac or pulmonary disease (McMichael, Woodruff 2006). Heat waves are projected to increase causing more illnesses including heat stress, kidney disease, and heat strokes. Northeastern cities only have a few days where it gets 90+ degrees, but soon they will have to deal with more hot days when the temperature gets over 100+ degrees. This can cause city dwellers "urban heat island effect". Higher temperatures in the United States have been linked to longer allergenic ragweed pollen seasons. Today's increased levels of carbon dioxide can cause ragweed to produce twice as much pollen with increased airborne pollen, those who suffer from seasonal allergies could experience worsening symptoms, including hayfever and asthma.