Climate change is a significant and lasting change in the Earth's
climate. It is primarily driven by human activities, particularly the
burning of fossil fuels, deforestation, and industrial processes, which
increase the concentration of greenhouse gases in the atmosphere.
Impacts
The impacts of climate change are far-reaching and include rising sea
levels, more frequent and severe weather events, and disruptions to
ecosystems and agriculture.
This page is a work in progress and will be updated as more information
is added. The aim is to provide a comprehensive overview of the climate
and the changes that are happening. The information will be presented in
a way that is easy to understand and will be updated as new information
becomes available.
The impacts of climate change are far-reaching and include rising sea
levels, more frequent and severe weather events, and disruptions to
ecosystems and agriculture.
Lets start with a look at the AMOC as this is something which could
clearly affect us here in the UK in an adverse way. Climate drifting
to that nearer to Finland and Norway as the heat transfer from the
southern hemisphere slows down.
Climate Gas Levels
Carbon Dioxide Levels
Note the steep rise in CO2 levels starting in the late 1600s and
then rising dramatically from there but especially in the 1900s.
This rise, gradual at first and then accelerating correlates well
with the increasing use of fossil fuels. Approximately 2.6 million
tonnes late in the 17th century to four billion tonnes late in the
20th century. Add to this oil at five trillion barrels all of which
was geologically stored carbon now released to the atmosphere
Climate gasses rendered to client.
Estimates of the rates of change in C02
Decadal (1958–2023)
COâ‚‚ increased from ~315 ppm to ~420 ppm. Rate: ~2 ppm/year.
Century (1900–2000)
COâ‚‚ increased from ~295 ppm to ~370 ppm. Rate: ~0.75 ppm/year.
Millennial (1000–2000)
COâ‚‚ increased from ~280 ppm to ~370 ppm. Rate: ~0.09 ppm/year.
Measurement methods
Decadal measurements are taken from dramatically made at the Mauna Loa
Observatory in Hawaii and the South Pole. The data is collected by the
Scripps Institution of Oceanography and the National Oceanic and
Atmospheric Administration (NOAA). The data is then processed by the
Global Monitoring Laboratory. The timeframe for this is since 1958
when continuous monitoring commenced.https://flip.it/xyyKvu
For the century and millennial measurements, ice core data is used.
Calculation: Analyze COâ‚‚ concentrations from ice core layers dated
using techniques like layer counting or isotopic analysis. Calculate
the rate of change over centuries or millennia by averaging trends
over those periods. For example: Over the past 1,000 years, COâ‚‚ levels
rose from ~280 ppm to ~420 ppm, giving an average rate of ~0.14
ppm/year.
