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[A] [2] One estimate puts the percentage of Spanish language publications in natural sciences and technology as 0.5% of the world total, [B] a low number since Spanish is often considered to rank second or third among languages in various other metrics and estimates. [4] In the humanities a similar estimate yields 2.81%. [4]
Carbon dioxide has unique long-term effects on climate change that are nearly "irreversible" for a thousand years after emissions stop (zero further emissions). The greenhouse gases methane and nitrous oxide do not persist over time in the same way as carbon dioxide. Even if human carbon dioxide emissions were to completely cease, atmospheric ...
Older methods and approaches such as the grammar translation method and the direct method are dismissed and even ridiculed, as newer methods and approaches are invented and promoted as the only and complete solution to the problem of the high failure rates of foreign language students.
Atmospheric carbon dioxide (CO 2) concentrations from 1958 to 2023. The Keeling Curve is a graph of the annual variation and overall accumulation of carbon dioxide in the Earth's atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day.
Agricultural emissions of nitrous oxide make up 6% of the United States' greenhouse gas emissions; they have increased in concentration by 30% since 1980. [76] While 6% may appear to be a small contribution, nitrous oxide is 300 times more effective at trapping heat per pound than carbon dioxide and has a residence time of around 120 years. [76]
Whether you're heading home after the holidays or have festive plans to celebrate New Years Day, the busy holiday travel period continues, and weather may be a factor. For some, snow, rain ...
Billionaire Elon Musk, a key adviser to the incoming Trump administration, called for the Consumer Financial Protection Bureau to be eliminated, setting his sights on a regulator that has often ...
Although individual CO 2 molecules have a short residence time in the atmosphere, it takes an extremely long time for carbon dioxide levels to sink after sudden rises, due to e.g. volcanic eruptions or human activity [17] and among the many long-lasting greenhouse gases, it is the most important because it makes up the largest fraction of the ...