No.	Title	Date
441	High rates of sea-level rise during the last interglacial period	2008-01
442	High risk of permafrost thaw
443	High-resolution carbon dioxide concentration record 650,000-800,000 years before present	2008-05-18
444	The Historic Fur Trade and Climate Change	2006-12-26
445	Holocene sea levels and palaeoenvironments, Malay-Thai Peninsula, southeast Asia	2005
446	Holocene thinning of the Greenland ice sheet	2009-09
447	Hot days induced by precipitation deficits at the global scale	2012-07-31
448	Hotspot of Accelerated Sea-Level Rise on the Atlantic Coast of North America	2012
449	How Can We Avert Dangerous Climate Change?	2007
450	How economic growth and rational decisions can make disaster losses grow faster than wealth	2011-03
451	How high will seas rise?	2010-01-20
452	How high will seas rise?	2010
453	How local communities and global development agencies reduce vulnerability to natural disasters and climate change ( external resource | internal citation )	2009
454	How resilient is your country?	2012-12-22
455	How science is telling us all to revolt	2013-10-29
456	How the Experiences of Ancient Floridians Inform the Challenges of Sea-Level Rise Today	2010
457	How will sea level respond to changes in natural and anthropogenic forcings by 2100?	2010
458	The Human Dimension of Climate Adaption ( external resource | internal citation )	2009
459	Human-induced climate change requires urgent action	2013
460	Human-induced global ocean warming on multidecadal timescales	2012