117

Are environmentalists responsible for Californian forest fires? No. It was environmentalists (by which I mean people who professionally study forest ecology or environmental science) who have tried to convince the various agencies responsible for suppressing forest fires that forest fires are not necessarily bad but are instead a natural part of the West's ...


14

tl;dr: The claim cannot possibly be true, unless "Elon Musk's recent large-scale transactions" refers to all bitcoin transactions over the last six months. "The amount saved..." A detailed analysis by Carbon Brief finds that over its lifetime (assuming 150,000 km driven), a Tesla Model 3 results in 10 to 19 tonnes of carbon emissions, ...


11

A 10% chance of 6-10°C by the end of the century is not in the findings of the IPCC AR5 (2013) report. This seems relevant given the reference to "UN approved climate models" in the claim. The summary in the IPCC AR5 report is (pg. 1031): Global mean temperatures will continue to rise over the 21st century if greenhouse gas (GHG) ...


9

Has non-TSI solar output increased over the past century in ways the IPCC climate models ignore? Probably not. What Prof. Shaviv has done is shown that it is possible to make a simple climate model which replicates climate change by adding certain parameters the IPCC does not use. What they have not shown is whether this has any relation to reality. The ...


9

Let me try and answer the literal question in the headline and then address some other questions that are implied. Are there currently more large fires in Africa and South America than the rest of the world? Yes, that seems likely. A 2019 paper suggests that sub-Saharan Africa alone accounts for about 70% of global burnt areas: The area [Sub-Saharan Africa] ...


8

The carbon footprint of sending an email has been estimated by the Shift Project in this document to be between 0.5 and 2 Watt.hour (for a 1 MB email sent in 3 minutes), let's take 1 Watt.hour. The US average emissions are estimated here to be 0.429 kgs CO2e per kWh. This would give an estimate of about 0.5 g CO2e for sending a 1 MB email (so a rather large ...


8

Going to try to expand some things from the comments into a full answer. The meta view The paper in question was published in Energy & Environment in 2015. It's since been cited 7 times, mostly by a T Havránek who closely collaborates with the paper's authors. While obviously it's important for Skeptics to consider claims on the object level, on the meta ...


5

Mostly true First, your title somewhat overstates Reason's claim in the article "Bad Policies Fuel Fires", which is that "[politicians] and environmentalists increased the risk of big fires by opposing the thinning of forests." The article never claims overgrowth is the sole reason (or even the principal reason), just that it provides ...


5

No SkepticalScience discusses various ways people have tried to claim that the sun has caused the recent warming of Earth, and they're just generally not justifiable. There are a number of studies that try to attribute warming just from statistical correlation, like Foster & Rahmstorf 2011, and they inevitably find essentially no solar effect, usually ...


5

tl;dr: Australia's GHG emissions probably declined significantly in 2020 due to COVID-19, but to know if they declined to their lowest since 1990, we'll need to wait until other analysis is available. How does Australia's counting of Australia's emissions compare to how others count? Without digging too deep into how the Australian Department of Industry, ...


4

A partial answer, based on the 2011 paper, Quantifying the role of solar radiative forcing over the 20th century, by Shaviv and Shlomi Ziskin: Well, it turns out Shaviv and Ziskin do not make clear positive claims regarding what makes up that contributing factor of solar activity. They only make the basic assumptions that some kind of "Indirect solar/...


3

The extrapolation is plausible I can't directly answer the question exactly as it's written. The only way we could answer this question with any certainty is to wait and see - what happens if someone invents a way to automate non-renewable power plants so they don't need workers? Or what happens if someone invents a giant robot that automatically builds ...


Only top voted, non community-wiki answers of a minimum length are eligible