New Research Maps Countries' Contributions to Global Warming
A new study aims to offer unique insights into countries’ historical responsibility for global warming, by translating their carbon emissions into a proportion of observed temperature rise.
How responsible different countries’ are for climate change to date has long been a contentious issue. Contributing differently to the build-up of greenhouse gases in the atmosphere, some countries are considered more to blame for warming than others.
As well as carbon dioxide from fossil fuel burning and land use change, they examined methane, nitrous oxide and sulphate aerosol emissions.
The researchers then looked at the relationship between these emissions and temperature rise—weighing each type of emission according to the lifetime of the temperature change it causes.
By working out how much each country has emitted, they were able to work out how much temperature rise it had caused.
Unsurprisingly the research showed how a small number of countries account for a large share of greenhouse gas emissions. Together, the U.S., China, Russia, Brazil, India, Germany and the UK have been responsible for 63 percent of emissions.
Using the new method, the U.S.—which takes top place in terms of historical emissions and contributing more than double the emissions of second place holder China—is responsible for 0.15 degrees Celsius of warming. That’s close to 20 percent of the total temperature rise witnessed so far.
China and Russia come next in the rankings—responsible for around eight percent of emissions each—contributing around 0.06 degrees Celsius to global temperature rise, followed by Brazil and India, responsible for around seven percent of global emissions and 0.05 degrees Celsius temperature rise each.
Germany and the UK come in sixth and seventh—responsible for around five percent of emissions and 0.03 degree Celsius of temperature rise.
The researchers experimented with various methods of illustrating the difference between countries’ emissions.
They examined contribution to temperature rise relative to population size (per capita emissions).
Here China and India fall to the bottom of the rankings. The UK jumps to first place ahead of the U.S. when population size is considered—with the top seven countries all coming from the developed world.
They examined also emissions relative to geographical area.
Here countries, such as the UK and Japan jump up the rankings, having caused disproportionately more warming than the size of their country would suggest, while Canada and Australia fall down the table.
Understanding countries’ total historical emissions is a hugely complex task—and the researchers warn the latest results should be considered as a “reasonable best guess.”
Visit EcoWatch’s CLIMATE CHANGE page for more related news on this topic.
By Grayson Jaggers
The connection between the pandemic and our dietary habits is undeniable. The stress of isolation coupled with a struggling economy has caused many of us to seek comfort with our old friends: Big Mac, Tom Collins, Ben and Jerry. But overindulging in this kind of food and drink might not just be affecting your waistline, but could potentially put you at greater risk of illness by hindering your immune system.
- 15 Indigenous Crops to Boost Your Immune System and Celebrate ... ›
- 15 Supplements to Boost Your Immune System Right Now - EcoWatch ›
- Should I Exercise During the Coronavirus Pandemic? Experts ... ›
- The Immune System's Fight Against the Coronavirus - EcoWatch ›
EcoWatch Daily Newsletter
As the world continues to navigate the line between reopening and maintaining safety protocols to slow the spread of the coronavirus, rapid and accurate diagnostic screening remains critical to control the outbreak. New mobile-phone-based, self-administered COVID-19 tests being developed independently around the world could be a key breakthrough in making testing more widely available, especially in developing nations.
- FDA Approves First In-Home Test for Coronavirus - EcoWatch ›
- When Should You Get a COVID-19 or Antibody Test? - EcoWatch ›
- Trump Plans to End Federal Funding for COVID-19 Testing Sites ... ›
- Trump Insider Embeds Climate Denial Into Agency Reports ... ›
- Climate Denier Is Named to Leadership Role at NOAA - EcoWatch ›
New Jersey is one step closer to passing what environmental advocates say is the strongest anti-plastic legislation in the nation.
Did you know that nearly 30% of adults do, or will, suffer from a sleep condition at some point in their life? Anyone who has experienced disruptions in their sleep is familiar with the havoc that it can wreak on your body and mind. Lack of sleep, for one, can lead to anxiety and lethargy in the short-term. In the long-term, sleep deprivation can lead to obesity, diabetes, and cardiovascular disease.
Fortunately, there are proven natural supplements that can reduce insomnia and improve quality sleep for the better. CBD oil, in particular, has been scientifically proven to promote relaxing and fulfilling sleep. Best of all, CBD is non-addictive, widely available, and affordable for just about everyone to enjoy. For these very reasons, we have put together a comprehensive guide on the best CBD oil for sleep. Our goal is to provide objective, transparent information about CBD products so you are an informed buyer.