Feed aggregator
From heatwaves to hurricanes, floods to famine: seven climate change hotspots
Global warming will not affect everyone equally. Here we look at seven key regions to see how each is tackling the consequences of climate change
It could have been the edge of the Sahara or even Death Valley, but it was the remains of a large orchard in the hills above the city of Murcia in southern Spain last year. The soil had broken down into fine white, lifeless sand, and a landscape of rock and dying orange and lemon trees stretched into the distance.
A long drought, the second in a few years, had devastated the harvest after city authorities had restricted water supplies and farmers were protesting in the street. It was a foretaste of what may happen if temperatures in the Mediterranean basin continue to rise and desertification grows.
Continue reading...Latest diesel car models remain highly polluting, tests show
Six new vehicles including Land Rover and Suzuki are adding to air pollution crisis, despite stricter rules coming in months
The latest diesel car models are failing to meet pollution limits when on the road, just three months ahead of stricter new tests, independent tests have found. Results show that none of six new 2017 diesel cars met the EU standard for toxic nitrogen oxides (NOx) pollution in real-world driving.
The updated Equa Index, produced by the testing firm Emissions Analytics, shows that 86% of all diesel models put on to the British market since the 2015 Volkswagen emissions scandal failed to meet the official limit on the road, with 15% producing at least eight times more NOx emissions.
Continue reading...Exxon, Stephen Hawking, greens, and Reagan’s advisors agree on a carbon tax | Dana Nuccitelli
Nearly everyone other than science-denying Republican Party leaders understands the importance of a carbon pollution tax
What do ExxonMobil, Stephen Hawking, the Nature Conservancy, and Ronald Reagan’s Secretary of Treasury and Chief of Staff have in common? All have signed on as founding members to the Climate Leadership Council, which has met with the White House to propose a revenue-neutral carbon tax policy.
The group started with impeccable conservative credentials, bringing on cabinet members from the last three Republican presidential administrations (Ronald Reagan, George HW Bush, and George W Bush): two former Secretaries of State, two former Secretaries of Treasury, and two former chairmen of the President’s Council of Economic Advisors. It was founded by Ted Halstead, who explained the group’s proposed policy in a TED talk:
Continue reading...Splish splashing spinning gorilla
The long-jump prize goes to … the froghopper
Fermyn Woods, Northamptonshire Hard to spot, sitting still under a leaf, these bugs on the move are jumping champions
As the morning sun heats the still woodland air the rides fizz with the sounds of flying insects: bumblebees buzz between bramble blossom and clover heads, a myriad of small flies zips through the air, and longhorn beetles whir and clatter around the dog roses.
Each species has its own habits and lifecycle that together constitute the intricate web of life in this ancient wood.
Continue reading...IPART bumps up benchmark range for NSW solar tariffs
$9 million to begin hydrogen roadmap
Battery storage “gigafactory” planned for Darwin for 2018
NSW follows Victoria, South Australia in major push to demand management
Trump bashes wind energy in state that gets a third of its power from wind
$53.8 million for Stanwell Power Station
Watched chimps change their hunting habits
Trump’s far-fetched solar wall idea sparks surge in US solar stocks
Inertia in power system: We don’t actually need that much
How the presence of humans can affect chimp hunting habits
Future of energy on show in Kazakhstan
Abrolhos Coral and Live Rock operation – June 2017
Indian teen celebrates as Nasa sends satellite to space
Report warns increased gas reliance means high emissions
Is it really so wrong to care for an introduced bird species?
While running the Australian Bird Feeding and Watering Study, I have been surveying people on whether they try to discourage undesirable birds from entering their gardens.
For the survey, I used the term “undesirable birds” for introduced species such as spotted doves or house sparrows. Judging by the volume of complaints I received, I may have misjudged this definition – introduced does not necessarily mean “undesirable”!
I was surprised to discover how much people appreciate the spotted doves, house sparrows, blackbirds and other “undesirables” that hang around their gardens. People care about these birds, even though ecologists officially consider them pests.
Two house sparrows can be seen here enjoying a bath among native New Holland honeyeaters. Wanda OptlandThis raises an interesting question. Introduced birds are often considered to be pests, but does that necessarily mean we shouldn’t interact with or enjoy them at all?
House sparrows, spotted doves and Indian mynas dominate many urban areas, are dependent on us to survive, and appear to cause little damage to native species. There is very little peer-reviewed evidence of environmental impact of introduced birds on other species. Without us and our urban development, one wonders how common they would be.
In an increasingly urbanised world, many birds are having to adapt to a new habitat: the urban jungle. I live in a rented house in inner Melbourne, and in my very small garden I have two spotted doves and a family of house sparrows. I would love to have some small native birds visit me, but it’s almost certainly not going to happen because of where I live.
Many bird lovers are so concerned with encouraging native species that they feel guilty about enjoying the only birds that do visit. But should we care any less about them because they are introduced species? After all, it’s not as if my garden is getting much love from the natives – the local magpie ignores my entreaties, and the wattlebirds are too busy arguing over the bottlebrush trees that line our street. In their absence, why shouldn’t I form a bond with Mr and Mrs Spotted Dove who have been with me for three years? A spotted dove. Wanda Optland
Friendly feedersIt seems I am not the only one who feels this way. My preliminary survey results suggest that many people get pleasure from helping wild birds, whether by providing food, water or somewhere for them to live. As many species are relatively long-lived, the same birds visit time and again, and some people even consider them part of their household.
Some respondents said they find that birds alleviate anxiety and depression, or as one of my citizen scientists put it:
I try to feed birds responsibly because it lifts my depression. Connects me to nature. Makes me happy.
Another told me:
The emotional feeling watching the birds is better than any pill.
For many respondents, the relationship with individual birds seems to matter more than whether or not they are a native species. As another respondent told me:
I feel that I have a relationship with the birds that come to my garden. Some of them sit on the patio and wait for me.
A spotted dove seen on the left shares a cool spot in the backyard with a native double-barred finch. Wanda OptlandI can relate. My two spotted doves are always in my garden, and will follow me around until I give them some seeds. They provide great entertainment for my two indoor cats who watch through the flyscreen. I feel connected to them, despite any lingering guilt about encouraging non-native species.
Native to where?As with most things in life, this issue is far from black and white anyway. With the possible exception of a magpie’s familiar warbling song, what could be more Aussie than the sound of laughing kookaburras? But did you know that they are non-native to Western Australia and Tasmania? It’s a similar story for rainbow lorikeets, whose colourful plumage is a common sight in and around Perth despite them being non-native there.
What about less lovable species, such as the Indian mynas, also called common mynas, and rock doves, also known as feral pigeons or (rather less kindly) “flying rats”?
An introduced bird species, Indian mynas are commonly seen in urban gardens of eastern Australia. Wanda OptlandIndian mynas do particularly well in many urban areas such as Brisbane, Melbourne and Sydney. This is partly because of the prevalence of large gumtrees with little or no understorey, which reflect very closely their natural habitat. Could it be that their success is largely down to us?
Rock doves also get a very bad rap, despite being descended from war pigeons that were credited with saving hundreds of human lives. Think about that the next time one gives you the eye while you eat your lunch in the city!
So should we feel guilty for loving introduced birds? If caring for birds is good for our mental health, then perhaps the answer is no, even though we want to see native species thrive wherever possible. Do you provide food or water for introduced birds? I would love to see your comments.
Often we have little choice anyway. Sometimes, because of where we live, introduced birds are the only ones who care to interact with us. As much as I would love to see an Australian king parrot visit my little Melbourne backyard, I will probably have to be content with just my spotted doves and house sparrows for company.
Grainne Cleary received a small grant from Mars BirdCare to help support her research