In this insightful episode, Dr. Sheena Fraser welcomes back Dr. Anastasia Theodosiou and introduces Baroness Natalie Bennett to discuss the Consumer Products (Control of Biocides) Bill. They unpack…

15.08.2025 – A new study maps the planetary boundary of “functional biosphere integrity” in spatial detail and over centuries. It finds that 60 percent of global land areas are now already outside the...

Scientists call for renewed global effort to curb fossil fuels as seven of nine planetary boundaries now transgressed

Founded in 2005 as an Ohio-based environmental newspaper, EcoWatch is a digital platform dedicated to publishing quality, science-based content on environmental issues, causes, and solutions. A field of bleached Staghorn coral in a reef with a school of fish in...

Ocean Acidification has been added to the growing list of Planetary Boundaries now considered to be breached, bringing the running total to seven out of nine, with the finger of blame directed firmly at fossil fuel burning made worse by...

Play #PlasticsTreaty Shorts: The Planetary Boundary with Bethanie Carney Almroth by Plastisphere Podcast on desktop and mobile. Play over 320 million tracks for free on SoundCloud.

The planetary boundaries framework has emerged as a powerful tool for assessing the sustainable habitability of our planet. Reassessing these boundaries from a flow-based perspective demonstrates the ...

The methodological framework of this study remains consistent with the newest PB-FW definition as proposed by Porkka et al.16. We first established local variability bounds for both streamflow and soil moisture at the grid cell scale (between local 5th–95th percentile values) under a baseline scenario that is largely undisturbed by human actions (“Methods”). Subsequently, we determined local deviations—i.e. events of anomalous dry and wet streamflow or soil moisture conditions falling outside of the 5th–95th percentile range—and estimated the occurrence of these deviations by aggregating them to the percentage of global or regional land area with local deviations (“Methods”). Variability in the occurrence of local deviations under the baseline scenario was finally used to set two reference boundaries at the global scale and for each region: one at the median of baseline variability and one at the upper end (95th percentile) of baseline variability (“Methods”). Following Porkka et al.16, we assume that widespread deviations beyond the baseline scenario variability elevate gradual or abrupt systemic risks related to freshwater change and thus use its upper end as a reference boundary to represent these risks. At the global scale, the upper end reference boundary corresponds to the PB-FW16,18. We employed a large ensemble...

🚨Une nouvelle limite planétaire franchit : L’Océan s’acidifie Nous venons de franchir la 7ème des 9 limites planétaires définies pour garantir un équilibre sûr du « système Terre » a annoncé le 24 ...

Earth has breached a critical boundary for ocean acidification, with potentially grim effects for ocean ecosystems and human livelihoods

I've covered ocean acidification many years ago, when it was beginning to emerge as a threat to corals and other calcifying sea organisms, and I've written about the planetary boundary concept (most recently, when chemical pollution was found to have exceeded the boundary). Thus the new research suggesting that ocean adicification is also outside the planetary boundary (as the seventh of the nine parameters in the original planetary boundary paper) presented a good opportunity to visit both issues in one go. My feature is out now: **Oceans acidified beyond boundary** Current Biology Volume 35, Issue 15, 4 August 2025, Pages R739-R741 Restricted access to full text and PDF download (will become open access one year after publication) Magic link for free access (first seven weeks only) See also my new Mastodon thread where I will highlight all this year's CB features. My mastodon posts are also mirrored on Bluesky (starting 22.2.2025), but for this purpose I have to post them again, outside of the thread. (I think threads only transfer if the first post was transferred, so once I start a new thread it should work.) Last year's thread is here . The cover image is not really related to my article, but to me it also symbolises the interaction between the oceans and the atmosphere, because: "Bluebottles or man-o'-war, cnidarians in the genus Physalia, use a gas-filled float and sail to catch the wind and sail the ocean surface." Cover of Current Biology, vol. 35, issue 15, 2025.