A greater focus on lifestyle change and renewable energy can scale down the use of
negative emissions significantly a new study shows.
Not exact matches
But the figure that was pointed out seems to suggest that the uncertainties of the
negative forcings may postpone warming from
emissions significantly.
If we have become serious enough about climate and resources to be moving
significantly toward
negative emissions then the glibal world view will have needed to have already shifted.
Once the ice reaches the equator, the equilibrium climate is
significantly colder than what would initiate melting at the equator, but if CO2 from geologic
emissions build up (they would, but very slowly — geochemical processes provide a
negative feedback by changing atmospheric CO2 in response to climate changes, but this is generally very slow, and thus can not prevent faster changes from faster external forcings) enough, it can initiate melting — what happens then is a runaway in the opposite direction (until the ice is completely gone — the extreme warmth and CO2 amount at that point, combined with left - over glacial debris available for chemical weathering, will draw CO2 out of the atmosphere, possibly allowing some ice to return).
For the near future the uncertainty in climate prediction justifies choosing polices that guide us towards net
negative emissions as quickly as possible and the stabilization of atmospheric greenhouse gases at levels
significantly lower than today.
The EU and US have both reduced CO2
emissions significantly, at negligible or even
negative economic cost.
For example, the LN trend of growth of GST in the BEST data from 1978 - 2009 is in fact
negative and statistically
significantly so, with a high but
negative t - statistic, despite the ever - increasing growth of
emissions.
While less meat gets wasted than does fruit and vegetables, the amount of energy required to produce meat is «
significantly» more than that for plant - based food production, which means that the associated greenhouse gas (GHG)
emissions from meat production is also much higher, leading researchers to indicate that meat waste has a «greater
negative environmental impact.»