- Arctic & Antarctic
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- Climate Modeling
- Finance & Economics
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- Government & Policy
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How will future warming and CO2 emissions affect oxygen concentrations?
Oxygen levels are declining due to the burning of fossil fuels and other kinds of pollution. While the decline won’t directly affect humans in terms of the air we breathe, certain ecosystems are much more impacted, especially aquatic ones.
Why do we compare methane to carbon dioxide over a 100-year timeframe? Are we underrating the importance of methane emissions?
This greenhouse gas is short-lived but has far greater heat-trapping potential than CO2. The more concerned we are about global warming over the next 10 or 20 years, the more emphasis we have to put on cutting methane emissions.
If cities require new buildings to use 100% electric heat, will that raise or lower their greenhouse gas emissions?
Electric heating can cause a short-term rise in emissions in areas that get their electricity from fossil fuels. But without electric heat, we can’t get greenhouse gas emissions to zero.