Environment - Global

(CLICK ON IMAGE TO ENLARGE)

CLICK HERE - RESEARCH - Planetary boundaries: Guiding human development on a changing planet

As Science publishes the updated research, four of nine planetary boundaries have been crossed: climate change, loss of biosphere integrity, land-system change, altered biogeochemical cycles (phosphorus and nitrogen). Image source: F. Pharand-Deschênes /Globaïa

stockholmresilience.org

Planetary Boundaries 2.0 – new and improved

As Science publishes the updated research, four of nine planetary boundaries have been crossed

Four of nine planetary boundaries have now been crossed as a result of human activity, says an international team of 18 researchers in the journal Science (16 January 2015). The four are: climate change, loss of biosphere integrity, land-system change, altered biogeochemical cycles (phosphorus and nitrogen).

Pope Francis (CNS)

catholicherald.co.uk - by Conor Gaffey - February 9, 2015

Protecting the environment is a Christian duty not just reserved for ‘green’ activists, Pope Francis said today.

The Pope tackled the topic of creation in his morning homily at Casa Santa Marta, warning that Christians must be the protectors of the natural world, not its masters. . .

. . . The Pope is expected to release his eagerly anticipated encyclical on the environment in June or July ahead of the UN Climate Change Conference to be held in Paris in December.

On his flight from Sri Lanka to Manila in January, Francis was reported to have said that human beings are largely to blame for climate change.

(READ COMPLETE ARTICLE)

Image: President Obama meets with President Xi Jinping. Photo Credit: Pete Souza/White House

environmentalleader.com - November 13th, 2014

The US and China set ambitious climate change goals on Wednesday, with President Obama pledging to cut US greenhouse gas emissions 26 percent to 28 percent below 2005 levels by 2025.

Chinese president Xi Jinping announced targets to peak carbon dioxide emissions by 2030 or sooner and to increase China’s non-fossil fuel share of energy to around 20 percent by 2030.

The announcement was met with praise from environmentalists and business groups.

(VIEW COMPLETE ARTICLE)

Vidéo : atmosphère terrestre contient une grande quantité d'un composé appauvrissant la couche d'ozone depuis une décennies de source inconnue, après que le composé a été interdit dans le monde entier.

huffingtonpost.com - 23 août 2014 - Katherine Boehrer

New recherche de centre de vol spatial Goddard de la NASA montre que les grandes quantités d'une substance chimique responsable qui appauvrissent la couche d'ozone sont toujours rejetés, voire des années après une interdiction internationale.

de nouvelles mesures ont révélé que, malgré le protocole de Montréal, ce qui limite l'utilisation de divers produits chimiques appauvrissant la couche d'ozone, les rejets de tétrachlorure de carbone (CCl4) continuent. Il devrait y avoir aucune émission du composé conformément à l'accord international, mais les mesures de la NASA montrent une moyenne de 39 kilotonnes sont toujours émis chaque année.

(lire l'ARTICLE complet)