Not exact matches
This means that the science of climate change may partially undergo a shift of its own, moving from trying to prove it is a problem (it is now «
very likely» that greenhouse gases in the atmosphere have already caused enough warming to trigger stronger droughts,
heat waves, more and bigger forest fires and more
extreme storms and flooding) to figuring out ways to fix it.
The study shows that by century's end, absent serious reductions in global emissions, the most
extreme, once - in -25-years
heat waves would increase from wet - bulb temperatures of about 31 C to 34.2 C. «It brings us close to the threshold» of survivability, he says, and «anything in the 30s is
very severe.»
But unless such drastic action is taken in the next few years, we are headed for a
very different world, one in which seas will rise by more than 5 metres over the coming centuries, and droughts, floods and
extreme heat waves will ravage many parts of the world (see «Rising seas expected to sink islands near US capital in 50 years «-RRB-.
Across the globe in recent decades, there has been an increase in the number of hot
extremes, particularly
very warm nights.1 Hot days have also been hotter and more frequent.2 Since 1950 the number of
heat waves has increased and
heat waves have become longer.3
In the science sessions in the afternoon, there was some good talks related to attributing
extreme events including Marty Hoerling discussing the Moscow
heat wave and a
very different perspective from the cpdn group in Oxford.
Impacts from recent climate - related
extremes, such as
heat waves, droughts, floods, cyclones, and wildfires, reveal significant vulnerability and exposure of some ecosystems and many human systems to current climate variability (
very high confidence).
For example, in IPCC (2007, Fourth Assessment Report — AR4; Summary for policymakers, p. 15), we read (our emphasis): «It is
very likely that hot
extremes,
heat waves and heavy precipitation events will continue to become more frequent».
Impacts from recent climate - related
extremes, such as
heat waves, droughts, floods, cyclones, and wildfires, reveal significant vulnerability and exposure of some ecosystems and many human systems to current climate variability (
very high confidence)-LSB-...] Risks are amplified for those lacking essential infrastructure and services or living in poor - quality housing and exposed areas
Increases in the risk of illness and death related to
extreme heat and
heat waves are
very likely.
It is
very likely that hot
extremes,
heat waves, and heavy precipitation events will continue to become more frequent.
The IPCC also noted that «simple
extremes,» such as» [h] igher maximum temperatures; more hot days and
heat waves over nearly all land areas» — which are deemed «
very likely» — could result in some of the following:
While Australia has always experienced
heat waves, this particular event was
very unusual as the
extreme temperatures were widespread and persisted for a long time.