Greening the suburbs is an agenda I am familiar with, and have been observing and implementing for the past 15 years, with differing degrees of success. Professor Lambers, equally shows his concerns on the benefits of vegetation of streets.
His latest post ended in a quite animated discussion about greening the suburbs, which I strongly agree with:
We all know that trees provide the oxygen we breath and remove carbon dioxide (a greenhouse gas) from the air. But they can do that anywhere, and we would still experience their benefits in our suburbs if they did this in a forest at great distance from our cities. However, we need them where we live, rather than at great distance, to maintain livable city temperatures.
Trees provide shade, and, most importantly, they provide evaporative cooling. This ensures that green suburbs are considerably cooler than suburbs without trees. This is crucially important when global warming is upon us and heatwaves will continue to hit us. It is why the City of Melbourne promotes planting trees, to reach their target to reduce the temperature by 5 degrees Celsius: http://newsroom.melbourne.edu/…/hot-city-how-plants-can-hel….
There have been 4,000 death due to heat in Australia in the past two centuries. Death due to heat in Australia are expected to rise as a result of global warming. This can be avoided, if we reverse the trend to demolish trees when building suburbs or clear the entire block when building a new home. The City of Nedlands is loved as a green and leafy suburb. Yet, it lost 12.3 ha of tree canopy from 2012 to 2014. Why can’t we be as smart in Perth as they are in Melbourne?
Philip Albert Jones The Oceans actually produce far more Oxygen than Trees ever will, most people don’t seem to know this ? The Seas’ of our Planet cover 70 % of the World we live in and consequently have a huge Climatic effect on us. I do appreciate the Evaporative effect that Tree’s locally have on us of course (the principle of refrigeration) but it’s mostly cancelled out by the cars in City’s and other heat sources not so obvious !
Kwongan Foundation The oceans may cover a larger surface area, but more carbon dioxide is fixed and more oxygen released on land, where the primary productivity is considerably greater. In fact, the total productivity on land is twice that of the ocean. The point we ar…See More· Commented on by Hans Lambers ·
Kwongan Foundation Philip Albert Jones The whales feed on krill, which depend on tiny plants that produce massive amounts of oxygen. All true. If you add up the total amount of oxygen produced or carbon fixed or dry matter produced by tiny and large plants in the oceans and on the land, you will arrive at the conclusion that the total amount is twice that on land.Commented on by Hans Lambers ·
Christie Phillips I live in Butler and although there are a few leafy parks the new housing allotments are only big enough to allow for a patio out the back with a few steps out front to the verge ! Cluster housing is going to cause great concern on many levels. The only ones to profit are the Council and the Builders.
Kwongan Foundation What we aim for with this album is to provide the facts. After that, it is a matter of telling our local members and mayors what needs to be done. You don’t need to be a greenie to support this. The City of Melbourne has potted expanding its green area as a policy.
Kwongan Foundation The Kwongan Foundation made the point that trees are vital to ensure our cities remain livable. If you want answers about the plan referred to, you’ll have to ask the Premier. The more people who raise those questions, the better the plan may become. Your questions is an excellent and perfectly valid one.
Cate Tauss You can see Nedlands performs less well than expected for heat vulnerability http://www.mappingvulnerabilityindex.com/home/perthvi Its reputation as a leafy suburb near the Swan River that most would assume guarantees “cool” is not true.
What he omits is the extent of heatwaves in the 19th and early twentieth Century, and the role electricity provides in providing heating and cooling to prevent ‘climate’ deaths. The only ‘real warming’ is the urban sprawl causing UHI.