Top 10 planeteviable.org Wettbewerber

co2solidaire.org

Utilisez le Calculateur CO2 de CO2Solidaire pour calculer vos émissions carbone et les compenser en soutenant des projets solidaires.

cieau.com

A l'occasion du 20e Carrefour des gestions locales de l'eau des 30 et 31 janvier au parc des expositions de Rennes, le Centre d’information sur l’eau a dévoilé les résultats du baromètre régional d’opinion Tns-Sofres/CIEAU 2018 sur les Bretons et l'eau.

ceped.org

un laboratoire pluridisciplinaire de recherche au Sud et de formation au Nord et au Sud

idrc.ca

IDRC is committed to protecting your privacy. This privacy notice provides details about the information collected when you visit the IDRC website and how it is handled. All personal information held or collected by IDRC is protected under Canada’s Privacy Act. Information automatically collected from site visitors Certain information is automatically collected when you interact with the IDRC website, including but not limited to: the internet protocol (IP) address of your device and the type of browser used the date and time the site was accessed search queries the pages visited The information collected is used to enhance and improve the online experience of the IDRC website. Cookies What are cookies? Cookies are small text files stored on your computer or mobile device when you visit certain websites. These text files allow a website to remember your device and how you interacted with the site, which is useful for purposes such as optimizing your browsing experience. Cookies are also used to analyze how a website is used, to count visitors and to gain insights to improve the overall website experience. All such data is used in aggregate, and IDRC does not link information on website usage statistics and other analytics to individual people. Can I opt out of cookies? You may adjust your browser settings to manage, decline or delete cookies according to your preference. Further information on how to manage browser-specific cookie settings is below: Google Chrome Firefox Microsoft Edge Safari Web analytics Web analytics involve the collection, measurement, analysis and reporting of data about website traffic for the purposes of understanding visitor behaviour and optimizing the usefulness of a website. This website uses Google Analytics to generate aggregate website usage data, including: audience-related data such as geographic location, language preference, frequency of visits, operating system, service provider and device used to access the site; traffic source d

iaea.org

More than 3000 participants registered for the Agency’s 69th general conference in Vienna this week, with 10,500 people joining online. The conference decides the direction of the IAEA’s work for the coming year, as it seeks to promote peace, health and prosperity worldwide. Water was the focus of the Scientific Forum and highlighted how by studying water at an atomic level, we can better manage our global water resources for future generations. During the conference, the Director General also opened a new Visitor Centre at the IAEA’s laboratories in Lower Austria.

tel.archives-ouvertes.fr

Increasing drought caused by the ongoing climate change, and forest management by thinning that aims at mitigating its impact, may modify the current relationships between forest functions and drought intensity and preclude our ability to forecast future ecosystem responses. We used 15 yr of data from an experimental rainfall exclusion (−27% of rainfall) combined with thinning (−30% stand basal area) to investigate differences in the drought–function relationships for each component of above-ground net primary productivity (ANPP) and stand transpiration in a Mediterranean Quercus ilex stand. Rainfall exclusion reduced stand ANPP by 10%, mainly because of lowered leaf and acorn production, whereas wood production remained unaffected. These responses were consistent with the temporal sensitivity to drought among tree organs but revealed an increased allocation to wood. Thinning increased wood and acorn production and reduced the sensitivity of standing wood biomass change to drought. Rainfall exclusion and thinning lowered the intercept of the transpiration–drought relationship as a result of the structural constraints exerted by lower leaf and sapwood area. The results suggest that historical drought–function relationships can be used to infer future drought impacts on stand ANPP but not on water fluxes. Thinning can mitigate drought effects and reduce forest sensitivity to drought.

drivetozero.fr

Nombre de collectivités et transporteurs ont investi ces dernières années dans la filière BioGNV pour les besoins de leurs services de transport…