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Hi there, thanks for the AMA!
I'm an Environmental Science student and incredibly concerned about the future.
My question is: realistically, do you think it will be possible to meet our goals to decarbonise the global economy without addressing areas such as shipping and aviation (absent from Paris Agreement), livestock agriculture and continued economic growth? For example there's current talks of expanding Heathrow which clearly goes against our climate agreements. We currently have no means to decarbonise these industries on a large scale and yet the demand grows every year. Even if we can decarbonise energy, heat and motor transport how do we tackle the more 'wicked problems' of the global economy before the carbon budget is effectively used up?
Also if I'm allowed a second question, I recently listened to a talk by Kevin Anderson on academia and climate change. Do you think in some way academia perpetuates the high-carbon lifestyle? For example, flying internationally for meetings/conferences.
Thanks for this AMA!
What's the easiest way we can do our bit? I get that not many people want to change or even deny the climate is changing at all, so what's the lowest effort thing we can all do as a society to have a big difference?
What is the state of carbon dioxyde removal technology?
Do you feel capitalism has delayed the onset of electric cars to maximise the profit of oil?
With the total removal of cars producing toxic fumes, will electric cars make any dramatic impact on climate change considering the energy necessary to charge the cells?
Why is it still 'climate change' and not 'global warming' when the main impact will be a global heating of the earth?
What impact does water vapor have on climate change?
Do you think the government needs to do more in dealing with climate change like making solar panel on roofs mandatory in construction and banning log burning stoves in houses. If so what would be the big thing you would like to see them put into law to reduce climate change?
Realistically is it too late for us? If everyone would actually make changes today, would it even matter?
When is the U.S. going to pull their head out of their ass?
It is clear that the meat industry has a large impact on global warming but also vegtable farming can be very destructive to the local enviroment by clear cutting for human consumption. Are there some solutions being worked on to combine the two practices for a better long term environment?
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I acknowledge the role that individuals, private companies, and local governments can have on reducing emissions but there are some projects so overwhelmingly expensive and difficult that only national governments can undertake them (e.g. the development of the computer in the 40s). In terms of climate solutions, this might be basic research and development in photovoltaic, fusion, storage, or yet untested technologies. Private industry research and development can only go so far (in terms of risk and projects that won’t pay off for decades).
Do you thing solving the problem of climate change is possible without the continuous and emphatic support of national governments (esp. the U.S.)?
I've read somewhere that the hole in the ozone layer is healing. Did the recent awareness of climate change had an effect on this and what does this mean for the predictions with regards to earth temperatures and climates?
Is it true that a free infinite source of energy (for example "cold fusion") would result in runaway waste heat pollution that would be trapped on the planet? It seems a lot of people fantasize about unlimited energy but when I mention "waste heat" they have an explanation why its not a factor.
With the arrest of Dr. Matthew Falder, today, described as the "most prolific paedophile ever", should the science community be doing more to root out abusers amongst their ranks?
You mentioned 'applying the theme of Climate Action to the sustainable development goals' - could you expand a bit more on the relationship between the two?
Hello professor Lenton and Dr. Mansell.
My question is regarding our realistic ability to avoid catastrophic climate change. Considering the recent releases concerning the inability of carbon capture and sequestration (BECCS, DAC, etc) to scale sufficiently, and the IPCC working group 3 models *all* depending on large scale deployment of BECCS - how can we mitigate severe consequences of climate change when we have already effectively eliminated the "realistic" pathways to decarbonisation as put forward by the IPCC?
Hey there! Thanks for doing the AMA!
With all the uncertainty in the models, what are your thoughts on how the terrestrial Carbon sink will evolve over the next century?
Are there any areas that could do with a lot more research in order to better understand the sink?
Thank you for the AMA!
We tend to hear a lot about large Climate Change impacts: ice melting, biodiversity changes etc.
Are there any recent 'unseen' developments in either Earth System or cryosphere research that you feel deserve more public attention?
What are your thoughts on a 'Carbon Tax'?
Is it likely to ever be implemented?