Showing posts with label warming. Show all posts
Showing posts with label warming. Show all posts

The wellness and wellbeing of the environment is in jeopardy, and this is having all kinds of effects on the way that we live our lives, many of which you may well not be aware of.


 


For example, did you know that your groceries are probably costing more because of the environment? Due to the North American Drought in 2012 (caused by low snowfall followed by extreme heat), around 80 percent of the agricultural land in America suffered. This has affected soybean crops, corn and both dairy and meat products. This has translated directly into a 2.5 to 3.5 percent increase in the price of food in the United States.


 


Clothing prices could also be on the increase as a result. Environmentalists are aware that textile production and overconsumption could lead to an increase in clothing prices. The depletion of the natural materials used to make clothes, along with the carbon emissions that the factories that make them cause are both taking a big toll on the planet. A group of scientists recently predicted that by around 2025, factories would have to start growing textiles to make clothes from bacterial cellulose, a compound produced from bacteria. Not a nice thought!


 


Speaking of bacteria, your chances of infection are now higher than ever before. Temperatures in Northern areas have continued to increase, leading insects to migrate to areas that they would not before have entered, and bringing illness and disease with them. Incidences of Lyme disease have almost doubled in Maine, and have risen twelve-fold in Vermont. Climate change also means that infectious agents transmit more easily from animals to humans.


 


It’s hitting you in your pocket too – insurance rates are going up because of the increase in weather-related disasters such as Superstorm Sandy and Hurricane Katrina.

More than 10% of Iceland is covered by some 300 glaciers, but this may not be the case for long. Every year, the Solheimajokull glacier loses about 11 billion tons of ice a year, making it a key focal point of environmental wellness experts. For the past two decades, the tongue of ice reaching toward Iceland’s southeast coast has retreated an average of one Olympic pool-length every year. This is thanks to, and indicative of, the planet’s wellbeing as a whole, as climbing temperatures, warming ocean currents and disrupted seasons are the culprits behind Iceland’s glacier loss.


 


Lying just below the Arctic Circle, Iceland is one of the fastest-warming countries on the planet, as much as four times the average warming rate in the Northern Hemisphere. The amount of ice carried away from Iceland’s glaciers and not replaced by new snow annually would fill 50 of the world’s largest trucks every minute for the entire year. According to during an interview in his office at the University of Iceland’s Institute of Earth Sciences, pioneering glaciologist Helgi Bjornsson commented, ‘It is among the highest losses on the Earth.’ The majestic white mountains – jökull in Icelandic – aren’t only the subject of ancient myth and a proud literary tradition; they’re also a lucrative draw for tourists and, as a result, crucial to the nation today. The glaciers stores water for its 320,000 residents, and their rivers provide most of the country’s electricity through hydropower.


 


According to Bjornsson, who is one of the leading scientists to quantify the link between glacial loss and greenhouse gas-induced warming, some of the Iceland’s glaciers have vanished already and several others will be gone within a decade or two. In one generation’s time, the water and electricity provided by the ice mountains will be gone, dust storms will swirl over dry glacier beds while huge expanses of exposed earth erode. However, this isn’t a problem for the near-future; the effects are happening now. Iceland’s longest bridge spans half-a-mile over the Skeidara River, which is responsible for draining from the massive Vatnajokull ice cap down to the island’s south coast. Bjornsson notes, ‘A few years ago, the river disappeared and now this bridge, the longest bridge in Iceland, is just standing there, and there’s no water underneath it. So it looks like we are crazy here in Iceland.’


 


Magnus Hallgrimsson, vice-president of the Iceland Glaciological Society (a group of volunteers who have conducted annual surveys of the island’s glaciers since 1950) has been assisting Iceland Search and Rescue since 1948. The avid sportsman has made a number of glacial assents, but some of the mountains he frequents have begun to disappear in the past few years. Hallgrimsson first noticed the melt in the mid-1980s, but he says it is accelerating: ‘In the last years in the lower areas of the Tindfjallajokull (a glacier in the southern highlands) all the snow is gone.’ In fact, Hallgrimsson has measured retreats of as much as one third of a mile: ‘The tail of the glacier goes back and leaves just gravel.’


 


As early as the mid-2100s, Iceland’s glaciers may be no more than small ‘ice museums’ atop the highest peaks, says Hallgrimsson, but what do the residents think? Artist Vigdis Bjarnadottir, who spent her childhood in the village of Olafsvik at the foot of the rising glacier, was inspired to create a painting of the Snaefellsjokull Glacier, with tacks and strings crossing its glacial peaks. ‘As we do not want the Snaefellsjokull Glacier to disappear, I have nailed and tied it down,’ she declared. After all, as another resident quipped, without glaciers, Iceland is ‘just land.’

In recent months, politicians have tried to deny the views of environmental wellness experts, and claim that climate change isn’t quite as scary as they’d have us believe. However, new research, published the journal Nature Geoscience, has found that a runaway greenhouse Armageddon is all too possible, and, the oceans could theoretically boil dry. However, it’s not all doom and gloom as we humans – planet harming as we might be – cannot do enough on our own to trigger such an end-of-the-world scenario in the near future.


 


Until now, experts thought that, for the Earth’s well-being to be truly in jeopardy from global warming, we would need more energy from the sun. However, researchers from Canada and the US have made new calculations which show that it’s far more easy for catastrophic warming to occur than the experts had previously supposed. Unfortunately, a runaway greenhouse effect is a realistic possibility, even for a planet receiving the same amount of solar radiation as the Earth.


 


According to the research team, which was led by Colin Goldblatt from the University of Victoria in Canada, ‘The runaway greenhouse may be much easier to initiate than previously thought. A renewed modelling effort is needed, addressing both Earth and planetary science applications.’ If you are struggling to imagine what it might look like if the Earth was ever caught in the grip of runaway global warming, you only need to take a look at your planetary neighbour. Many experts believe that Venus has experienced a runaway greenhouse effect in the past, and now – due to its average surface temperature of 460C – the planet’s dense carbon dioxide atmosphere is hot enough to melt lead.


 


Though the study’s simplified model didn’t take into account the effect of clouds, it is still a viable account of how a stable Earth could switch to a runaway greenhouse state under certain atmospheric conditions. However, during the Eocene period 55 million years ago (in which the Earth underwent more warming than at any previous time in its history) the atmospheric carbon dioxide levels and temperature were both higher than what we can be expected to see as a result of our man-made emissions, but there was still no runaway effect. The researchers concluded, ‘This implies that an anthropogenic (human-caused) runaway greenhouse is unlikely.’

The environmental repercussions of global warming could be catastrophic to the future wellbeing of the planet, but scientists are now claiming that there is a chance that the effects could be totally reversed.


Researchers claim that burning trees for energy, as well as storing captured carbon dioxide could help to offset, or even totally reverse emissions.


Experts caution that this is just a theory, at present, and that restoring the wellness of the planet is not quite as simple as it sounds. For a start, this approach needs to be trialed before the earth’s temperatures reach dangerous levels, because climate change is already reducing the number of trees that are available to burn for bioenergy. Whilst in theory burning trees, as well as crops, for energy and capturing the resulting carbon dioxide to be stored underground is a great way of reversing global warming, a lot more research is required before this could be put into practice and make any kind of real difference to the environment.


The team that carried out the research was based at the Chalmers University of Technology, in Sweden, and they published the findings of the study in the journal Environmental Research Letters. As part of this write up, the scientists claimed that using this approach could not only offset but actually help to reverse the emissions currently given off by fossil fuels.


World leaders have currently agreed to avoid the world temperatures rising two degrees, but these researchers feel confident that even if temperatures did rise beyond this agreed point, their methods could still help to bring temperatures down again.  The authors feel that political gridlock could lead to increase problems with global warming, including the temperature rising above the agreed two degrees margin, but they say that this is not a concern as their methods would totally reverse the effects of this.

Due to the drought being suffered in Texas, scientists now believe that the environmental situation has reached a crisis point. Texas Governor Rick Perry says that the state has suffered three years of drought, and that there is now a serious threat to property, the economy and public wellness as a result.


It is not just the wellbeing of those in the state of Texas that we should be worrying about, though. The situation shows that global warming is an increasing environmental threat, and the repercussions of not tackling this serious issue head on could be catastrophic for the future of the planet.


Fortunately, President Obama has recently unveiled his government’s plan to tackle the issue of global warming, in a speech given at Georgetown University.


It is important for the US to make a serious plan, as the country is the largest culprit in the production of global warming pollution in the entire world. To meaningfully address the problem of pollution in America would spell a much greater chance of averting the serious impacts that scientists fear will come with climate change.


Already, the states has seen a year in which temperatures soared to record-breaking heights, wildfires spread through the country (including during the recent tragedy which claimed the lives of 19 brave firefighters), drought has affected many different areas and severe storms have also battered the country. President Obama feels that one of the main culprits in this growing crisis are the dirty power plants which emit record-breaking levels of CO2.


Already, the States has managed to reduce its carbon footprint by placing caps on global warming pollution across a number of different states, and also aims to have taken 56 million vehicles off the road by 2020, reducing further pollution in this form.