Colleen Morrison
5:00 AM - July 16, 2009
This is a tale of science fiction come to life. It describes how
path-breaking technologies developed in different corners of the world are merging
to benefit the Earth. It explains how a bioreactor being developed in China
Coal gasification to reduce warming
It a fascinating
story that draws on simple ideas backed by incredibly complex science and
mathematics. Researchers at China's ENN are using micro algae, which
replicates rapidly when it is exposed to sunlight and carbon dioxide, to consume
the CO2 produced by coal gasification plants.
Why is this
important? Because the CO2 emissions from coal-fired plants add a huge amount to
the accumulation of greenhouse gases surrounding our Earth, believed to be a
leading cause of global warming. Research in coal gasification suggests that the
process may prove to be an effective weapon in our ongoing struggle against
environmental degradation.
A bioreactor that
"eats" carbon dioxide
Back to our
story. The folks at ENN built a large bioreactor (a complex assembly of tubes
and more tubes engineered to "manufacture" algae) and dropped in a bit of sea
algae (they like algae because it consumes CO2 very rapidly). They then
introduced the harmful CO2 gas from the coal plant to their algae. At the end of
the day, the algae grows and greenhouse emissions don't.
Gasification is a
process that uses steam, air and high temperature and pressure to break coal
down into its component parts; the resulting "clean" gases can be captured and
used in a variety of applications. Once the stuff of science fiction, government
agencies around the globe, including the US Department of Energy, are taking a
hard look at the technology as one way to minimize the negative impact of carbon
fuels on our atmosphere.
Technologies
working together
Part of the
benefit - harmful CO2 gases are easily captured and prevented from entering the
atmosphere. And once captured, it's a small thing to send them to the belly of
the bioreactor for "digestion." Researchers are still working to resolve some
issues with the process, for example, what to do with all the algae offspring
produced in the bioreactor.
Chinese
researchers are doubtful that the algae bioreactor is the ultimate solution for
CO2 emissions, but the research is a step in the right direction. And the
by-products of the process may yet prove to be valuable: algae may be used in
the production of biofuels, and the gases and heat produced by coal gasification
power plants provide two separate sources of power for electrical
generation.
Takeru V.
Maeda
5:00 AM - July 9, 2009
In the last decade, China has been revered by other leading
nations for from an economic standpoint. However, because of this prosperity,
China has been seen by environmentalist groups around the world as the world's
biggest contributer to our globe's natural dilemma.
Takeru V.
Maeda
5:00 AM - July 16, 2009
Ethnic conflict in the Xinjian region of China continues to flare between the Han Chinese -- who make up for most of China's population -- and Uighurs -- Turkic-speaking Muslims -- where the clashes have claimed the lives of close to two hundred civilians.
What started as a
fight between factory workers in
After the
factory incident, thousands of Han Chinese in
These attacks
on the Uighurs have led many other Uighurs in and around the Xianjing region to
ready themselves for any possible assaults made against them.
While the
Chinese government has claimed that the tension between the two cultures have
been thinning out in the last several years, the clashes that have recently
taken place are merely reflections of the cultural tensions that existed for
several decades.
The Xinjiang
province has been dominated by the 10 million-plus Uighur population -- most of
which are
Sunni Muslims -- despite the government's past involvement in
fluctuating the Han population in the region. Many Uighurs have claim that the
ethnic Chinese have long discriminated them because of the Uighurs's economic
prosperity in the region, as well as having some advantages with government
policies that alleviate them from restraints that the Han Chinese must obey;
some of which include
Muslim women being allowed to give birth to more than
one child without being fined, unlike the Han, as well as extra points added to
Uighur students on their standardized tests for university placement.
However,
Ughurs in the region believe that the government is working to cleanse Xinjiang
of Muslims by laying out religious restrictions that prevent them from
practicing or even expressing their faith in public and in the work place.
Facilities for Muslim practices have been sparsely designated to certain areas
in the region and Muslims have even had passports revoked by security to prevent
them from undertaking Haji pilgrimage. Praying at the work place is prohibited
in many places and many Uighurs have claimed to have been forbade from fasting
during Ramadam, having been forced to eat during the day.
The official
death toll has shot up to exactly 184 -- for now -- with 137 accounted for Hans
Chinese and 46 for Uighurs, while well over a thousand have been reported
injured. The city has been utterly gripped by the increase of authorities,
enforcing curfews and apprehending suspicious men, especially Uighur men, off
the streets (by observing the suspicious for any wounds that could've been
caused by a fight).
Civilians from
both sides have voiced their feelings and protested, while the government has
acted to help restore order in the city. Civilians in the city of
With China's prosperity comes the great numbers in its
population. With more than one billion people, it is only inevitable for a
nation that large to endure a lacking in natural resources, thus, migrant energy
and mining industries established in regions beyond their borders. China
continues to grow but ringing the alarms. Their growth may be hurting our
planet, and although they're not the only ones contributing to our global
problems, according to some, they're indefinitely doing the most damage.
Greenhouse
gases have been a major concern in the world in the last several years. Major
countries around the world are continuing their efforts to help with utilizing
new ways of industry with less CO2 emissions. Since 1990, China had already
accounted for 10.5% of the CO2 emissions in the world. Currently, China is
considered the world's biggest emitter of CO2.
On the other
hand, some have argued that despite the high numbers in emissions, China's
population
is more than 3 times that of the US population and that a Chinese
citizen only uses 25% of energy used by their US counterpart. With the country's
size and massive population, yet in actuality, using very little energy compared
to people in other nations, China's numbers in energy consumption is very well
below what it could if its citizens used more energy. Also, most of China's
energy consumption is used by goods manufacturing; the industry of exports,
which Europeans, Japanese, and Americans have spent big. Our interests in their
manufacturing is, somewhat, a contributing issue to CO2 emissions.
China has also come under fire
from wildlife prevention groups, accusing China of endangering wildlife for the
use of exotic medicines and other wildlife products. However, China has shown
effort in protecting the wildlife. In 1981,
There has
also been an increasing number of nature reserves and national parks to help
protect natural growth and the wildlife inhabitants. Currently, more than 15% of
China's land area is protected by the government.
Despite
China's mostly positive response to global needs, its impact greatly lies with
its alarming numbers in CO2 emissions. Fortunately, with the signing of the
Kyoto Protocol, part of the UN Framework Convention on Climate Change '98, China
has gone on to make emission reduction a national policy, setting goals to
annually reduce its energy consumption by 20% after five years.
While China
has clearly shown promise for the world, the EU and the US have yet to bring big
numbers to the table. Despite the US's newly-found eco-friendly "green" attitude
and its infatuation with organic foods, Americans are still one of the top
nations in contributors to the globe's emission problems -- and one of the few
nations that have done so the longest. Before we can truly call out another
nation as the villains, in our planet's most precious hour, how about we pay
more attention to what we have to do ourselves before helping others?
In
Although, while the ruling only applies to the capital,
many homosexuals throughout
Section 377, or
more specifically, the Indian Penal Code, was written by Lord Macaulay during
the British colonial era, and basically stated that anyone who voluntarily has
intercourse with their own sex will lead to imprisonment and fine.
Those who
have criticized this policy, including some of
But today, many
homosexuals throughout
In a June
28th article of The Times of India, titled, Is India ready to accept gays?, the
reporter suggested whether India -- during the talks of possibly lifting the
Section 377 ban -- is ready to follow what most of the world has already done by
lifting an archaic ban or will it follow the likes of the few homophobic
countries like Pakistan, Uganda, Tanzania. To others outside
Manohar
Elavarthi, a gay man, is viewed by the public as being
"Our dream
for Indian politics is to build a common front of lesbians, untouchables,
eunuchs and low-paid workers -- people who really need a voice in this country,"
said Elavarthi. "
Perhaps
Australians have come under fire from its Indian community for the numerous reports of attacks on Indian immigrants -- mainly students -- in Melbourne and Sydney. These recent attacks have sparked an outrage, and the community is trying to look for answers and solutions for these
unjustly acts , some are
already speaking out and protesting for those who never received justice.
Students and
residents from the Indian community have spoken out about their views on these
crimes and on Australia's seemingly hateful attitude toward its immigrants. Some
believe that the hatred stems from the fact that many young Indian immigrants
have increasingly obtained jobs in many businesses and are seen as a threat to
middle-aged and younger Australians who lobby for the same positions. Some have
even spoken out on how many attacks have gone unnoticed, and that the police
continue to turn a blind-eye on these cases; that there is an insensitiveness
toward the Indian community.
One of the most
recent crimes involved two Indians who were attacked by two teenagers with beer
bottles. What began as an argument between the four men, turned into a fight,
leaving the two Indian men -- both in their 20's -- bruised and lacerated.
They were taken to the hospital where they would soon be discharged, while the
attackers were arrested and charged and will have to appear in court in July.
The crime was
just the latest in a string of reported cases of attacks on Indian immigrants
within the last couple months. Prior to that attack, in another case, another
Indian student was victim to what many believed to be a hate crime, when his car
was set on fire. Another case included attempted murder on four Indian students
by a 17-year-old male at a party, leaving one in intensive care, while another
case reported the brutal attack of a 21-year-old Indian male student by four
teenagers who had bashed him after he got off the train from his shift.
Non-indian
immigrants have also come forward in support of the Indian community, speaking
of their own experience with racism spewed by native
Australians.
However, despite
what many believe to be the clear signs of racism in these crimes, some, even
Indian immigrants, think that the media have been blowing these reports out of
proportion and have irresponsibly labeled them as "hate crimes." Some law
enforcement officers have also claimed that not enough evidence have been
collected or inspected to fully label these attacks as 'hate crimes'; they were
attacks made randomly that happened to spark uncontrollably within the media and
communities.
"When an
Australian is bashed, we call it a crime. When an Indian is bashed, we call it a
racist crime." Says Anoop Chopra, a teacher in Perth who believes racism has
nothing to do with the recent attacks. "Over the last few years, Australia
has taken a substantial number of students who, otherwise, would have gone to
the UK or the USA. It's is a deliberate attempt by some selfish and unscrupulous
businessmen to discredit Australia for their own vested interest."
Others feel
that the Indian community are to blame, and that their failure to integrate
themselves with the Australian society is what led to the attacks.
Earlier in
the month, the Australian state proposed plans to look into creating 'hate laws'
by changing specific laws to help judges with cases that deal with prejudice
against a specific group of people when sentencing a crime. These changes may
lead to an increase of penalties for the guilty.
Since then,
after 16 students were attacked in the month of June alone, the Australia High
Commission went ahead with the hiring of private detectives to help strengthen
security and to instill safety within the communities, specifically those in
Melbourne and Sydney. Many parents and professionals and other members of the
community -- some who were related or who have known the victims --
have gone on to flood private security agencies with requests for protection
against any potential attacks in the future.
"There is a
huge discrimination against international students," said Sydney reporter Uttam
Niraula. "I think the Rudd government should take immediate action to improve
the environment. The students' movement is very powerful and unaddressed anger
can lead to more violence."
5:00 AM - July, 2 2009
Colleen Morrison
Around the globe, scientists point to the damaging effects of global warming, and now there may be one more item to add to the long and growing list: DDT. There is evidence that the
the toxic pesticide is being released as a byproduct of
melting ice and glaciers in
DDT (the
chemical's full name is dichlorodiphenyltrichloroethane) was once hailed as a
wonder chemical; in fact, the scientist who discovered its value as an
insecticide was awarded the Nobel Prize in Physiology/Medicine in 1948. In the
US, communities sent out an armada of foggers during the warm summer evenings to
eradicate seasonal pests, and farmers applied the chemical liberally to protect
their crops.
The Dangers of
a Silent Spring
In its earliest
days, DDT did work effectively to keep mosquitoes under control and reduce the
incidence of malaria in many parts of the Earth. It didn’t take long for
scientists to begin noticing the negative impact of DDT, however. In 1962,
biologist Rachel Carson published her path-breaking environmental piece, Silent Spring, which described in stark
detail the potential long-term consequences of continued
use.
Carson's book
sounded an alarm which eventually led to a ban on the use of DDT in the US; by
the 1980s, the United Nation's World Health Organization (WHO) recognized the
danger posed by the chemical and took up the call. That agency recommended an
end to the use of DDT as an indoor household pesticide in countries that
suffered a high incidence of malaria.
Not Gone, Not
Forgotten
The traces of DDT
in Antarctic ice are troubling but the threat to human health from that source
is limited. A greater threat may be found in the ongoing use of DDT in some
parts of the world. In September 2006, the WHO reversed its position from two
decades earlier and announced that it once again supported the use of "indoor
residual spraying" of the pesticide to help contain the occurrence of
malaria.
At that time, Dr.
Anarfi Asamoa-Baah, WHO's Assistant Director-General for HIV/AIDS, TB and
Malaria, explained that, when applied properly, DDT continues to be an effective
and economically viable method for controlling malaria, a disease which kills
thousands of children around the world each week.
And now, the
former Minister of Health in Uganda is urging that country's officials to return
once more to spraying DDT in an effort to control that country's mosquito
population and slow the spread of malaria, the leading cause of death by disease
in the nation.
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