If only to manage climate-induced problems, South Asian countries have got to co-operate better.
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Most important, they would diminish future hurricane damage, whether climate-induced or not.
But the Ogallala is completely interconnected underground and significant pipeline spills and wellhead catastrophes could affect more cropland and human health than any other disaster, including climate-induced droughts.
No climate agreement will succeed without support from those countries that have so far contributed little to human-induced climate change, have low per-capita emissions, and stand to face the biggest challenges in adapting to the coming changes.
These will be spread like wild-fires by frequent climate change-induced weather events of catastrophic proportions.
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In 1988, Dr Hansen testified before the US Congress, arguing that human induced climate change had begun.
CO2 is the greenhouse gas of greatest concern to policy makers looking to stem human-induced climate change.
That will help those who seek to understand the carbon cycle and with it, the consequences of greenhouse-gas-induced climate change.
By contrast, human-induced climate change is thought to have raised global temperatures just 0.6 degrees Celsius during the past 150 years.
According to Prof Roger Pielke Jnr, from the University of Colorado, there are big dangers in claiming that one event, be it US weather records or wildfires in Australia, are clear evidence of human-induced climate change.
The recent heat wave that has fried much of the country, ruined crops and led to heat-related deaths has again raised the question of whether this and other extreme weather events can be attributed to human-induced climate change.
But according to this research, wheat will face a difficult future in the developing world, where higher prices for cotton, maize and soybeans have pushed wheat to marginal land, making it more vulnerable to stresses induced by climate change.
Now more than ever, there is a need to increase our knowledge of the feedbacks between climate, ocean and changes induced by human activities.
The story beginning overleaf assesses the implications for marine biodiversity of transgressing planetary boundaries, due to human-induced changes to the climate system, pollution and ocean acidification, as well as more direct threats like invasive species, overfishing and habitat destruction.
These match climate models' predictions of what happens when warming is induced by greenhouse gases better than it matches predictions of the result of changes in the sun's activity, the main alternative hypothesis for what might be causing the climate to change.
Prof Lee added that human-induced pressures, such as hunting, along with projected climate change and habitat loss, have the potential to change the dynamics of elephant populations and, jeopardise the long-term future of the species.
Again, climate was the reason, but this time suspicion fell on a human-induced change.
Science plays an important role in our response to global issues such as climate change, the hydrological cycle, biodiversity loss, natural hazards and human-induced disasters, population growth, land-use change, migration and urbanisation.
UNESCO: UK National Commission for UNESCO :: Environmental Science
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