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If in fact climate change is man made. There is strong evidence that this is a natural cycle. Are humans contributing greenhouse gasses? Yes, but what effect ar
by geiseric 9y ago
If in fact climate change is man made. There is strong evidence that this is a natural cycle. Are humans contributing greenhouse gasses? Yes, but what effect are they having? We don't really know, contrary to those who say they do. We have an idea, but climate prediction is still difficult and imperfect. So NO! The science isn't final.
- polotics 9y agoYou are using a straw man: science is never final. We however do really know what effect CO2 has, you even use the term "greenhouse gases", that's the effect right there in the name. You state "strong evidence", please post links to this I have a few debunking minutes left for today. Thank you
- DarkKomunalec 9y ago> science is never final Why not wait till we're (more) certain? What's the worst that could happen? Catastrophic, runaway climate-change? I say we risk it - at least the science will have been settled... FUD works both ways.
- dogruck 9y agoProposed responses to supposed man-made climate change are not free. For example, if you're a rich American, you simply hop on the bandwagon and pay more for stuff. Buy a Tesla, live in the city, pay some extra taxes, etc. If you're not rich, you have to think carefully.
- dwaltrip 9y agoHuman CO2 contribution and the basic warming effect are well understood. Nature absorbs more CO2 than it emits, but not enough to offset the amount we are putting out. Thus, the global CO2 concentration has been rising over the past 100+ years, especially in recent decades. A higher CO2 concentration blocks more thermal radiation from exiting through Earth's atmosphere into space. When this energy is blocked, it stays on Earth, raising the temperature. Using models that have made successful predictions in recent decades, we can predict that we are in for at least another 1 degree Celsius raise in global temperature, and very likely more if we don't work hard to counteract the issue (and stop emitting so much CO2). This temperature increase will have very real, significant consequences, and we saw it coming many years ago. There is a reason all other developed countries in the world don't deny climate change.
- dogruck 9y ago> Human CO2 contribution and the basic warming effect are well understood. Could you please point me to your most convincing scientific argument, so that I can understand it too?
- dogruck 9y agoI'll take each downvote as evidence that such an argument does not exist.
- terminus 9y agoThe argument was right below the line you replied to. Perhaps try reading? A google search for "case for climate change" would also give you meaningful results. But, you already knew that.
- dogruck 9y agoSorry, I meant a convincing piece of scientific reporting. I did read your echo chamber babble. What are your sources? Care to cite one?
- terminus 9y agoIgnoring the gratuitous insult, here's the NCA 2014 report (the report itself is about the impact of climate change; Chapter 2 lays out the case for climate change caused by humans. Citations are at the end of the chapter.): http://s3.amazonaws.com/nca2014/low/NCA3_Climate_Change_Impacts_in_the_United%20States_LowRes.pdf?download=1 http://s3.amazonaws.com/nca2014/low/NCA3_Climate_Change_Impa... There's also a web version where you can explore the highlights: http://nca2014.globalchange.gov/ http://nca2014.globalchange.gov/. The references are cited right there. If you don't find this convincing, then I'd like to understand why. Also, if you don't trust this source (a US gov agency), I'd like to understand what kind of sources might you find more convincing.
- dogruck 9y agoYou're right that we do not know what impact, if any, increased CO2 has on the environment. Of course people are downvoting your comment because cool-headed rational discussion of climate change is not supported on Hacker News.