A new study finds that the biggest threat to the planet’s environment is the food supply, with the top two culprits – coal and oil – accounting for 40% of the greenhouse gas emissions in the United States.
But it has found that the second biggest threat is human activity – particularly the burning of fossil fuels – at a rate of about 3.4 gigatonnes per year.
The study published in the journal Science found that fossil fuel emissions had risen from their low levels in the 1960s to about 35 gigatonne a year by the 1990s, but have now dropped to around 2.8 gigatonns a year.
That means that the world is burning more than half a trillion tonnes of CO2 a year – and the world’s food supply is responsible for the biggest part of it.
Carbon dioxide is the main greenhouse gas that contributes to global warming, the main reason why greenhouse gases cause global warming.
Carbon dioxide emissions are the primary driver of climate change because it causes heat waves, rising sea levels, more extreme weather events, and more frequent droughts and floods.
The authors say that if we were to reduce the number of tonnes of carbon dioxide in the atmosphere, we could significantly reduce the amount of heat-trapping CO2 that reaches the atmosphere.
However, this will take a very long time and will require significant changes to our climate system, including reforestation and land-use changes.
Researchers from the University of Reading have now carried out the first comprehensive analysis of carbon emissions and climate change from the food sector.
Their study, published in Nature Climate Change, looks at the global carbon emissions of the food and beverage industry from 1970 to 2012.
They found that over the same period, the number per capita of CO3 emissions has risen from 0.2 to 0.7 gigatonnnes, with a peak of 0.5 gigatonnen in 2010.
However the number has dropped by nearly one-third since then, and the amount emitted by the food, beverage and agricultural sectors has increased by around one-fifth.
This trend is expected to continue for the foreseeable future, according to the study.
Coal emissions, which accounted for around 20% of all CO2 emissions, have dropped by around 40% since 1970, but oil emissions have increased by more than 80%.
According to the report, the food industries’ emissions were responsible for more than two-thirds of the increase in greenhouse gases in the world between 1970 and 2012, as they emitted more CO2 than the rest of the world combined.
According for the research, the major contributors to greenhouse gases emissions from the global food industry were: Coal – 34% Oil – 16% Gas – 15% Total – 20% The study also looked at the effect of CO 2 emissions on the human health.
It found that a rise in CO 2 levels would increase the risk of several diseases including cardiovascular disease, cancer, asthma, diabetes, and hypertension.
However there were no links to CO 2 related deaths or hospitalisations.
However, the researchers found that it is important to note that they were using a very broad definition of the CO 2 effect and not only considering the impact of CO emissions on health.
The CO 2 effects on the environment could be different from those that occur in humans, they said.
They also found that emissions of CO-3 and methane were both directly linked to the growth of invasive species and the increase of disease.
What is CO2?
Copper dioxide, which is found in foodstuffs such as potatoes, cereals, and meat, is a byproduct of burning coal for energy.
It is a key greenhouse gas because of the impact on the atmosphere and climate.
As CO2 levels rise, so does the amount and concentration of carbon in the air, causing it to increase in temperature.
As CO2 concentration increases, it absorbs more sunlight and the Earth’s oceans absorb more heat.
This leads to the greenhouse effect, which has a negative effect on the climate.
It also leads to an increase in the amount that can be trapped in the Earth, called the net radiative forcing.
In a recent article in The Conversation, Dr David Kao, a researcher at the University and Oxford University, said that while there was a direct link between CO 2 and climate, it was not the only factor that affected climate.
But there are also indirect effects, which include increased pollution, deforestation, and changes in soil structure, for example. “
CO2 is a significant greenhouse gas and it has a direct impact on climate.
But there are also indirect effects, which include increased pollution, deforestation, and changes in soil structure, for example.
While the study does not examine the effects of climate on human health, it does offer some insight into how climate change will impact the food production sector in the future.
For example, it