Status of Climate Change 2013 CaTee Conference San Antonio 2013.

Status of Climate Change 2013

CaTee ConferenceSan Antonio

2013

Menu for Today

• IPCC 2013: Assessment Report #5• Facts about Climate Change• Who will Win, Who will Lose• What Needs to be Done

IPCC #5

• No great surprises - Sharper language• Uncertainties are still large• Essentially no change in Projections

except Sea Level Change expected higher than #4

• No Change for Hurricanes, Severe Weather – still very uncertain

• Ocean Acidification more certain, probably more serious

Facts about Climate Change

About 0.8o C pe

r century

Ten Year Climatology from Tropical Rainfall Measuring Mission

Climate Change: The

arid subtropics will expand

IPCC #5 future Climate Change

Oceans become More Acidic due to Dissolving CO2

Winners & Losers

Managed vs. Unmanaged Systems

Which sectors are growing?

From: The Climate Casino by William Nordhaus, 2013

What Needs to be Done

Sources of the CO2


Conclusions•Climate is changing, no doubt• It will get warmer, more arid in most

subtropical areas: water problems• Ocean will get more acidic:

extinctions•Mitigation is imperative, but adaptation must play a role•Coal burning is the main emitter of CO2 world-wide• We need market mechanisms to

curb it•Poor countries will suffer most because of vulnerabilities: migration, war•The really difficult problem is with problems that involve values we cherish, but cannot be quantified.

Status of Climate Change 2013 CaTee Conference San Antonio 2013.

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