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Ask a climate scientist: what are the legit models regarding CO2?

Ask a climate scientist: what are the legit models regarding CO2?

How does someone know which models are “bad science” in regard to CO2 modelling? What concentration of CO2 makes it critical? We ask the climate scientists. Got a question about climate science? Crikey’s environment blog Rooted has been running the Ask a climate scientist series for several months though, and it’s well worth trawling through the […]

Ask a climate scientist: How do you prove climate change is man-made?

Ask a climate scientist: How do you prove climate change is man-made?

If scientists can only claim to be 90% sure of man-made climate change, does this make it a judgment call rather than fact? Does the same concept apply to other scientific issues and theories? Plus, how it is even proved what is man-made and what isn’t when it comes to climate change? It’s an interesting […]

Ask a climate scientist: rainfall and water vapor

Ask a climate scientist: rainfall and water vapor

With the huge amounts of extreme weather and rainfall in Australian this year, it seemed appropriate to ask questions about rainfall and water vapor in relation to climate science. What areas of the plan will receive more rainfall as climate change continues and will this offset the desertification in other areas? Do water vapor emissions need to […]

Ask a climate scientist: does a sceptic's claims hold up?

Ask a climate scientist: does a sceptic's claims hold up?

Climate sceptics often like to say that scientists ignore certain aspects. Is this true? Today we take one climate sceptic — an ex-NASA scientist — and rebuke the issues he claims get ignored by scientists. Then, we question his own scientific proclamations. Will they stand up under multiple climate scientists’ gazes? Got a question about climate science? […]

Ask a climate scientist: how does water vapor cause global warming?

Ask a climate scientist: how does water vapor cause global warming?

As we begin a new year — on a day that is hot and windy 40 degrees in Melbourne, I might add — these continuous questions about climate science and the issues surrounding climate change seem even more poignant. Another year, another international climate change conference, another year with little climate change policy being advocated […]

Ask a climate scientist: Is 'natural' climate change just as bad as 'man-made'?

Ask a climate scientist: Is 'natural' climate change just as bad as 'man-made'?

So what happens if we finally get all the climate policies into action, cut down carbon emissions, sign a global agreement etc and then Mother Nature throws us severe droughts, floods and other major natural disasters anyway? Why work hard to fight man-made climate change if natural climate change is going to continue regardless? It’s […]

Ask a climate scientist: how is the global average temperature calculated?

Ask a climate scientist: how is the global average temperature calculated?

A State of the Climate — Global Analysis report declared Jan-Oct 2010 as the hottest period on record just last month. The stats came from combining the global land and ocean surfaces temperatures and comparing them to past historical time periods. But how is a global average temperature calculated? How is an “average” created in a […]

Ask a climate scientist: was Greenland actually green?

Ask a climate scientist: was Greenland actually green?

Let’s get global warming and long-cycle natural climate change put in a little historical perspective for us today. Yes, the Medieval Warm Period and whether Greenland was actually green will be examined by two different climate scientists. Got a question about climate science? These next few weeks at Rooted we’re running the Ask a climate scientist […]

Ask a climate scientist: How can CO2 be so tiny yet so powerful?

Ask a climate scientist: How can CO2 be so tiny yet so powerful?

It’s a carbon dioxide edition of ‘Ask a climate scientist’, though judging on some of the questions that have been pouring in, it’ll be the first of many. One question comes from a reader who need an answer to the only climate sceptic question that has ever floored him — if CO2 is such a […]

Ask a climate scientist: even if we reverse climate change, what damage can we expect?

Ask a climate scientist: even if we reverse climate change, what damage can we expect?

How do you prove climate change is a fact? And if it is, what damage can we expect? It’s a thoughtful and fascinating round of climate science questions today. Got a question about climate science? These next few weeks at Rooted we’re running the Ask a climate scientist series. Keep the questions coming as well, by […]