I wanted to post something to back up my blog earlier this week. While browsing through BBC News’ Science & Environment section, I came across this artilce titled, Polar warming ’caused by humans’. Here’s a quote from that article:
The rise in temperatures at Earth’s poles has for the first time been attributed directly to human activities, according to a study.
The work, by an international team, is published in Nature Geoscience journal.
In 2007, the UN’s climate change body presented strong scientific evidence the rise in average global temperature is mostly due to human activities.
This contradicted ideas that it was not a result of natural processes such as an increase in the Sun’s intensity.
At the time, there was not sufficient evidence to say this for sure about the Arctic and Antarctic.
More on the story from http://news.bbc.co.uk/2/hi/science/nature/7700387.stm
Another artilce, Earth on course for eco ‘crunch’ talks about the need to be conscious of our resource consumption:
The planet is headed for an ecological “credit crunch”, according to a report issued by conservation groups.
The document contends that our demands on natural resources overreach what the Earth can sustain by almost a third.
The Living Planet Report is the work of WWF, the Zoological Society of London and the Global Footprint Network.
It says that more than three quarters of the world’s population lives in countries where consumption levels are outstripping environmental renewal.
This makes them “ecological debtors”, meaning that they are drawing – and often overdrawing – on the agricultural land, forests, seas and resources of other countries to sustain them.