4 results
Ten new insights in climate science 2022
- Maria A. Martin, Emmanuel A. Boakye, Emily Boyd, Wendy Broadgate, Mercedes Bustamante, Josep G. Canadell, Edward R. Carr, Eric K. Chu, Helen Cleugh, Szilvia Csevár, Marwa Daoudy, Ariane de Bremond, Meghnath Dhimal, Kristie L. Ebi, Clea Edwards, Sabine Fuss, Martin P. Girardin, Bruce Glavovic, Sophie Hebden, Marina Hirota, Huang-Hsiung Hsu, Saleemul Huq, Karin Ingold, Ola M. Johannessen, Yasuko Kameyama, Nilushi Kumarasinghe, Gaby S. Langendijk, Tabea Lissner, Shuaib Lwasa, Catherine Machalaba, Aaron Maltais, Manu V. Mathai, Cheikh Mbow, Karen E. McNamara, Aditi Mukherji, Virginia Murray, Jaroslav Mysiak, Chukwumerije Okereke, Daniel Ospina, Friederike Otto, Anjal Prakash, Juan M. Pulhin, Emmanuel Raju, Aaron Redman, Kanta K. Rigaud, Johan Rockström, Joyashree Roy, E. Lisa F. Schipper, Peter Schlosser, Karsten A. Schulz, Kim Schumacher, Luana Schwarz, Murray Scown, Barbora Šedová, Tasneem A. Siddiqui, Chandni Singh, Giles B. Sioen, Detlef Stammer, Norman J. Steinert, Sunhee Suk, Rowan Sutton, Lisa Thalheimer, Maarten van Aalst, Kees van der Geest, Zhirong Jerry Zhao
-
- Journal:
- Global Sustainability / Volume 5 / 2022
- Published online by Cambridge University Press:
- 10 November 2022, e20
-
- Article
-
- You have access Access
- Open access
- HTML
- Export citation
-
Non-technical summary
We summarize what we assess as the past year's most important findings within climate change research: limits to adaptation, vulnerability hotspots, new threats coming from the climate–health nexus, climate (im)mobility and security, sustainable practices for land use and finance, losses and damages, inclusive societal climate decisions and ways to overcome structural barriers to accelerate mitigation and limit global warming to below 2°C.
Technical summaryWe synthesize 10 topics within climate research where there have been significant advances or emerging scientific consensus since January 2021. The selection of these insights was based on input from an international open call with broad disciplinary scope. Findings concern: (1) new aspects of soft and hard limits to adaptation; (2) the emergence of regional vulnerability hotspots from climate impacts and human vulnerability; (3) new threats on the climate–health horizon – some involving plants and animals; (4) climate (im)mobility and the need for anticipatory action; (5) security and climate; (6) sustainable land management as a prerequisite to land-based solutions; (7) sustainable finance practices in the private sector and the need for political guidance; (8) the urgent planetary imperative for addressing losses and damages; (9) inclusive societal choices for climate-resilient development and (10) how to overcome barriers to accelerate mitigation and limit global warming to below 2°C.
Social media summaryScience has evidence on barriers to mitigation and how to overcome them to avoid limits to adaptation across multiple fields.
Ten new insights in climate science 2021: a horizon scan
- Maria A. Martin, Olga Alcaraz Sendra, Ana Bastos, Nico Bauer, Christoph Bertram, Thorsten Blenckner, Kathryn Bowen, Paulo M. Brando, Tanya Brodie Rudolph, Milena Büchs, Mercedes Bustamante, Deliang Chen, Helen Cleugh, Purnamita Dasgupta, Fatima Denton, Jonathan F. Donges, Felix Kwabena Donkor, Hongbo Duan, Carlos M. Duarte, Kristie L. Ebi, Clea M. Edwards, Anja Engel, Eleanor Fisher, Sabine Fuss, Juliana Gaertner, Andrew Gettelman, Cécile A.J. Girardin, Nicholas R. Golledge, Jessica F. Green, Michael R. Grose, Masahiro Hashizume, Sophie Hebden, Helmke Hepach, Marina Hirota, Huang-Hsiung Hsu, Satoshi Kojima, Sharachchandra Lele, Sylvia Lorek, Heike K. Lotze, H. Damon Matthews, Darren McCauley, Desta Mebratu, Nadine Mengis, Rachael H. Nolan, Erik Pihl, Stefan Rahmstorf, Aaron Redman, Colleen E. Reid, Johan Rockström, Joeri Rogelj, Marielle Saunois, Lizzie Sayer, Peter Schlosser, Giles B. Sioen, Joachim H. Spangenberg, Detlef Stammer, Thomas N.S. Sterner, Nicola Stevens, Kirsten Thonicke, Hanqin Tian, Ricarda Winkelmann, James Woodcock
-
- Journal:
- Global Sustainability / Volume 4 / 2021
- Published online by Cambridge University Press:
- 18 October 2021, e25
-
- Article
-
- You have access Access
- Open access
- HTML
- Export citation
-
Non-technical summary
We summarize some of the past year's most important findings within climate change-related research. New research has improved our understanding about the remaining options to achieve the Paris Agreement goals, through overcoming political barriers to carbon pricing, taking into account non-CO2 factors, a well-designed implementation of demand-side and nature-based solutions, resilience building of ecosystems and the recognition that climate change mitigation costs can be justified by benefits to the health of humans and nature alone. We consider new insights about what to expect if we fail to include a new dimension of fire extremes and the prospect of cascading climate tipping elements.
Technical summaryA synthesis is made of 10 topics within climate research, where there have been significant advances since January 2020. The insights are based on input from an international open call with broad disciplinary scope. Findings include: (1) the options to still keep global warming below 1.5 °C; (2) the impact of non-CO2 factors in global warming; (3) a new dimension of fire extremes forced by climate change; (4) the increasing pressure on interconnected climate tipping elements; (5) the dimensions of climate justice; (6) political challenges impeding the effectiveness of carbon pricing; (7) demand-side solutions as vehicles of climate mitigation; (8) the potentials and caveats of nature-based solutions; (9) how building resilience of marine ecosystems is possible; and (10) that the costs of climate change mitigation policies can be more than justified by the benefits to the health of humans and nature.
Social media summaryHow do we limit global warming to 1.5 °C and why is it crucial? See highlights of latest climate science.
Seasonal and interannual variations in feeding station behavior of cattle: effects of sward and meteorological conditions
- M. Hirata, Y. Matsumoto, S. Izumi, Y. Soga, F. Hirota, M. Tobisa
-
- Article
- Export citation
-
A feeding station is the area of forage a grazing animal can reach without moving its forefeet. Grazing behavior can be divided into residence within feeding stations (with bites as benefits) and movement between feeding stations (with steps as costs). However, relatively little information has been reported on how grazing animals modify their feeding station behavior seasonally and interannually in response to varying environmental conditions. The feeding station behavior of beef cows (Japanese Black) stocked on a tropical grass pasture (bahiagrass dominant) was monitored for 4 years (2010 to 2013) in order to investigate the association of feeding station behavior with meteorological and sward conditions across the seasons and years. Mean air temperature during stocking often exceeded 30°C during summer months. A severe summer drought in 2013 decreased herbage mass and sward height of the pasture and increased nitrogen concentration of herbage from summer to autumn. A markedly high feeding station number per unit foraging time, low bite numbers per feeding station and a low bite rate were observed in summer 2013 compared with the other seasons and years. Bite number per feeding station was explained by a multiple regression equation, where sward height and dry matter digestibility of herbage had a positive effect, whereas air temperature during stocking had a negative effect (R2=0.658, P<0.01). Feeding station number per minute was negatively correlated with bite number per feeding station (r=–0.838, P<0.001). It was interpreted that cows modified bite number per feeding station in response to the sward and meteorological conditions, and this largely determined the number of feeding stations the animals visited per minute. The results indicate potential value of bite number per feeding station as an indicator of daily intake in grazing animals, and an opportunity for livestock and pasture managers to control feeding station behavior of animals through managements (e.g. fertilizer application, manipulation of stocking intensity and stocking time within the day).
Ketamine inhibits the tonic response to carbachol and histamine in the guinea pig trachea
- T. Sato, K. Hirota, A. Matsuki, E. K. Zsigmond, S. F. Rabito
-
- Journal:
- European Journal of Anaesthesiology / Volume 15 / Issue 4 / July 1998
- Published online by Cambridge University Press:
- 16 August 2006, pp. 486-492
- Print publication:
- July 1998
-
- Article
- Export citation
-
The contractile response of smooth muscles to spasmogens can be divided into two components by modifying the extracellular Ca2+ concentration. The phasic component depends on the mobilization of Ca2+ from intracellular stores whereas the tonic component depends, to a large extent, on the influx of extracellular Ca2+. The present study was designed to investigate the effect of ketamine on the tonic response to carbachol or histamine in the guinea pig trachea. Tracheal spirals from female guinea pigs were mounted in organ baths filled with aerated physiological buffer, and their isometric tension was measured. The phasic response to 10−7m carbachol or 10−5m histamine in Ca2+ -free, ethylene glycol-bis(β-aminoethyl ether)-N, N,N',N'-tetraacetic acid-containing buffer and the tonic response to each spasmogen after restoring [Ca2+] in the buffer was measured in the absence or presence of ketamine. In the presence of normal physiological buffer, ketamine decreased the contractions induced by carbachol or histamine in a dose-dependent fashion. No measurable phasic response to either carbachol or histamine was obtained in our preparation. Ketamine (5 × 10−5m−10−3m) reduced the tonic response to 10−7m carbachol to 79.5±2.7−4.3±0.7% of the response without ketamine. Similarly, ketamine (5 × 10−4m−2 × 10−3m) decreased the tonic response to 10−5m histamine to 80.7±3.9−23.0±3.2% of the response in the absence of ketamine. Our findings support the hypothesis that ketamine inhibits the paracrine agent-induced contractions of smooth muscles by interfering with the influx of extracellular Ca2+ or with an intracellular event(s) requiring extracellular Ca2+.