Cast doubts and aspersions all you want about the climate science that points a finger at man’s activities contributing to an increasingly warm planet, but make no mistake about the fact that we know that the burning of fossil fuels and deforestation increases CO2 in the atmosphere, strengthening the green house effect as we deprive natural sinks for absorbing this CO2. Man-made CO2 from burning fossil fuels has a distinctive signature with fewer isotopes in them than the CO2 that nature emits from plants. So anyone who argues we can’t know what we do is actually effecting global warming has no credible argument. To what degree this impacts us can and should be debated but to deny increased CO2 from burning carbon based resources will not negatively alter our ecosystem is simply irresponsible.
The signs of this warming are now evident in the projections climate scientist made years ago before extreme weather events occurred on a regular basis. Rising sea levels, desertification, increased plants and animal specie extinctions and ocean acidification that kills coral reef and marine life are now at a level that man has not seen in his life time and by all measures, in some cases, have not been recorded in earth’s history.
True there are no absolutes in this field and not all research seems to give us an exact scenario how things will play out. The reality however is that nothing of this scale ever works precisely in order for us to make exact judgments. What we do have is strong, sufficient evidence that indicates we are a threat to our only home by the burning of fossil fuels and removing the carbon sinks like forests and large bodies of water that help absorb excess CO2.
Rather than ignore this and continue to burn coal, oil and gas at the rate we have we should be proactive and assume the information about man-made global warming is “extremely likely” and proceed accordingly. After all, if we’re wrong what have we actually done but address the problems that will evolve from this dirty, finite resource and build on those clean, renewable sources that will undoubtedly be needed to provide essential energy for generations to come.