Carleton University Earth Sciences’ Post

Supported by the Canadian federal government’s New Frontiers in Research Fund, Carleton University Earth Sciences professor Hanika Rizo and her team are investigating the microbial processes of some very small organisms to address big questions like: How and when did life on Earth begin? Are we alone in the universe? How can we create a more sustainable society? Read all about this exciting research at the link below. https://lnkd.in/gbKfRNCX

Study shedding new light on Earth’s global carbon cycle could help assess liveability of other planets Research led by biogeochemist Dr Lewis J Alcott  has uncovered important new insights into the evolution of oxygen, carbon, and other vital elements over the entire history of Earth – and it could help assess which other planets can develop life, ranging from plants to animals and humans. https://lnkd.in/erUMyF9s

Human activities have clearly polluted Earth…but what about other planets? 🚀 🛰 Read our opinion piece published yesterday in the Proceedings of the National Academy of Sciences (PNAS), where we explain how pollution has spread beyond our pale blue dot 🌍 , and what the environmental chemistry, astrobiology, and planetary protection communities should do to manage chemical and material pollution at an interplanetary level. https://lnkd.in/gTrdiUgP

Scientists examine Earth's early life and environmental interactions over 500 million years, Los Angeles CA (SPX) Jul 30, 2024 The atmosphere, ocean, and life on Earth have interacted over the past 500 million years, creating conditions that supported early organisms. An interdisciplinary team has detailed this co-evolutionary history in a perspective article published in the multidisciplinary open-access journal National Science Review (Oxford University Press, Impact Factor 20.7). "One of our tasks was to

Ocean currents cycle carbon from the surface into the deep ocean, but they also bring carbon up from those depths. Scientists have long assumed that ocean could continue to be an overall carbon sink.⁠ But the new modeling study finds that slowing currents could also disrupt the upwelling of nutrients from the deep to the surface, starving the phytoplankton that absorb large amounts of carbon. Ocience's mission is to bring attention the oceans and highlight the role that phytoplankton, these tiny creatures, play 🌝✨ Photo and summary from Yale Environment 360: https://lnkd.in/dUHSFs3g.

🆕 Researchers propose new approach to #GlobalCommons as a tool for safeguarding critical Earth system functions in a new paper published in PNAS. Legal, political and Earth system scientists advocate for “the planetary commons” concept. 📜 This expands on the legal definition of global commons by adding not only globally shared geographic regions, but also the biophysical systems that regulate the resilience and state – and therefore livability – of Earth. This new broader definition is aligned with the concept that the commons are critical to supporting life on Earth and that we all depend on them. 🌱 🌏 The proposal aims to enhance legal responses for governing these systems beyond national boundaries. Contributors include Prof. Johan Rockström, Prof. Joyeeta Gupta, Prof. Tim Lenton. 📕 Read the paper: https://lnkd.in/gWSRbCAP Global Commons Alliance

🔎 It’s the small things that matter AIMS researcher Keegan Vickers is focusing on the smaller things in the ocean – microplastics. Whilst less than 5mm in size, microplastics are attracting global concern due to the threat they pose to marine life and ecosystems. Making sense of these tiny intruders is ‘shore’ to have a huge impact – and that’s one thing Keegan loves about science, having an impact. What tiny experience inspired Keegan to pursue marine science? ⬇️ #NationalScienceWeek #Microplastics #MarineScience

Exciting developments in plant biology! My insights into the crucial role of Ca²⁺ ions in molecular signalling pathways that enable plants to sense and counteract heat stress are gaining attention. This will pave the way for developing more resilient crops in a warming climate. #plantbiology #climateresilience #heatstress

Connecting grand and small scales: learn about EMBO Young Investigator Einat Segev and her research on the biogeochemistry of interactions between microalgae and bacteria in the ocean https://lnkd.in/g93j2r-H