Welcome to my blog, Mother Nature Challenge
and this post, Environment will change
On the Yahoo news today was reported that because of the global warming there will be adverse changes in the environment, hereunder is a copy of the report:
Conserving Australia's environment as it is today will become increasingly impossible as the world warms, so governments should instead focus on managing environments as they change, the CSIRO says.
A new report, released on Tuesday, says the impact of climate change on plants, animals and ecosystems will be "significant" by 2030 and "extreme" by 2070.
"This is likely to see the emergence of new environments and the disappearance of many existing environments," the CSIRO study states.
"The general pattern of change in vegetation is likely to be a decline in the area of environments that now favour trees and an increase in more arid environments favouring open woodlands, chenopod shrublands and grasslands."
Some species will persist where they are now geographically but their numbers will change.
Others will prosper in new regions and die out in others as climate change takes effect.
The report says current thinking about conservation - to preserve species and communities in their historical locations - will need to change.
"This paradigm of conservation will become increasingly unachievable and less effective for guiding conservation investment and actions," it states.
Instead there should be a preparedness to manage "inevitable change in order to minimise the loss of values associated with biodiversity".
A new concept of "dynamic biodiversity" could see a focus on the existence of species rather than their abundance and distribution.
The health of ecosystems could be the objective rather than fighting to preserve their existing composition and structure.
Australia's national science agency suggests the species-by-species approach will be more difficult to manage with a dramatic rise in the number of species vulnerable to extinction.
It could be a matter of "conserve the stage not the actors".
"Many of the environments our plants and animals currently exist in will disappear from the continent," lead researcher Dr Michael Dunlop said in a statement.