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Why Were 2023 and 2024 So Hot?

Union of Concerned Scientists

The year 2023 was by far the warmest in Earths recorded history, and perhaps in the past 100,000 years , shattering the previous record set in 2016 by 0.27C (0.49F). According to recent data from NOAAs National Center for Environmental Information, 2024 is likely to be even warmer than 2023. But why were 2023 and 2024 so warm?

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Upcoming Developments in International Governance of Marine Carbon Dioxide Removal

Law Columbia

The next week has the potential to bring important developments for international governance of marine carbon dioxide removal (CDR). seaweed) for carbon storage. The post Upcoming Developments in International Governance of Marine Carbon Dioxide Removal first appeared on Climate Law Blog.

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Arctic Report Card 2024: How Did the Region Fare? Ask the Caribou

Union of Concerned Scientists

Grade F: First major vital sign shift in its report card Different factors are at play in terms of whether the Arctic is a net sink or source of carbon. On one hand, warming temperatures increased vegetation in the region with increased uptake of carbon dioxide. Methane releases were sustained as well. in Arc2024 ).

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Electric Vehicles Help Combat Climate Change, Here’s Why.

Union of Concerned Scientists

Driving the average EV in the US produces carbon dioxide emissions equivalent to a hypothetical 100 mpg gasoline car. Released earlier this year, the data reflects actual powerplant emissions for 2023. These results are based on the most recent electricity emissions data available from the US EPA.

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Twenty years of blogging in hindsight

Real Climate

It shows the atmospheric concentrations of carbon dioxide (CO 2 ) and tells a story about the carbon cycle, involving Earth’s crust, the atmosphere, land surface, the biosphere, and the oceans. I wrote a post on the IPCC’s summary for policymakers (SPM) on this in 2023, but without much effect.

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NEPA in the Supreme Court (Part IV)

Legal Planet

Second, any effects to be analyzed must be reasonably foreseeable – this is in the text of the 2023 NEPA amendments, which basically codified past practice. For instance, when oil is produced, it is very likely that it will eventually be burned and release carbon dioxide, contributing to climate change.

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Why Climate Scientists Are Sounding the Alarm on the Ocean Circulation System AMOC

Union of Concerned Scientists

The potential collapse of the AMOC—which could happen within this century, or be triggered within this century and play out over a longer timeframe—comes as a result of climate change caused by additional heat-trapping emissions like carbon dioxide in the atmosphere. But what exactly would cause the AMOC to collapse?