these events have taken a very long time to occur. For nearly a million years carbon dioxide levels in the atmosphere have been, on average, 280 ppm, not rising above 300 ppm or dipping below 160 ppm. In the past, global warming has happened gradually over thous...
Carbon dioxide levels hit 50% higher than preindustrial time This 2019 photo provided by NOAA shows the Mauna Loa Atmospheric Baseline Observatory, high atop Hawaii’s largest mountain in order to sample well-mixed background air free of local pollution. Heat-trapping carbon ...
The Three Levels of “How” to Decarbonise The Decarbonisation of the Built Environment could be a much more expensive exercise and less effective than it needs to be. To prevent this, we need to consider the three levels of ‘How’ to decarbonise. Level 1 Ask, at the first and ...
the Antarctic Vostok and EPICA Dome C ice cores have provided a composite record of atmospheric carbon dioxide levels over the past 650,000 years1,2,3,4. Here we present results of the lowest 200 m of the Dome C
As this study examines changes over time, we conduct a change analysis to identify the association between carbon disclosure and subsequent performance changes. Compared to the prevailing ‘levels’ analysis, a ‘changes’ analysis increases the power of tests by examining the causes and consequences ...
Emission levels present regional per capita emissions and include all emissions from domestic consumption, public and private investments as well as imports and exports of carbon embedded in goods and services traded with the rest of the world (LULUCF emissions are excluded). Source data Extended ...
5G offers 50 times the energy efficiency of 4G in terms of bits per joule. But with its high bandwidth, ultra-low latency, and massive connections, 5G also increases network energy consumption. So how can we have our 5G cake and eat it? By innovating on multiple levels. ...
Direction 3: Hardware enhancement for nearly linear power usage changes with varying load levels to reduce low- and medium-low energy consumption.RF hardware transmits at higher efficiency as traffic loads increase. Refined, granular hardware sleeping mechanisms can shut devices down more responsively ...
This ‘biological carbon pump’ is a critical component of the global carbon cycle, reducing atmospheric CO2 levels by ~200 ppm relative to a world without export flux. This carbon flux also fuels the productivity of the mesopelagic zone, including important fisheries. Here we show that, ...
Carbon dioxide in the atmosphere has reached levels never experienced by humans. SEE: The Top Cartoons on Climate Change and Global Warming For the first time in the past 800,000 years, the concentration of carbon dioxide in the atmosphere is over 415 parts per million,...