Carbon dioxide (CO2) accounts for more than 80% of total greenhouse gas emissions globally, but only 12% of emissions are currently covered by explicit carbon prices. The High Level Panel on Carbon Pricing has called on the international community to double this figure to 25% by 2020 and increase it again to 50% within a decade. Read more.
Water and sanitation linked to many development factors
Despite halving the number of people worldwide without access to an improved water source over the past 25 years, the poorest countries are struggling to provide safe water and adequate sanitation to all their citizens in a sustainable manner. Just over a quarter of people in low-income countries had access to an improved sanitation facility, compared with just over half in lower middle-income countries in 2015. Delivery of water supply and sanitation is no longer just a challenge of service provision, but it is intrinsically linked with climate change, water resources management, water scarcity and water quality.
A fifth of the world's electricity production in 2012 came from renewable energy sources such as solar, wind, geothermal, and hydropower. The International Energy Agency estimates this could rise to a quarter of the world's production by 2020.
Note: I picked "over 80%" just for emphasis - I was surprised by the countries in Sub-Saharan Africa such as Zambia where hydropower is a big part of the energy generation mix. You can see a map with values for all countries with available data here.
The biggest impact climate change will have on the poor will be through agriculture. Under a pessimistic "poverty" scenario with high climate change impacts, there could be more than 100 million additional people in poverty by 2030, largely due to changing crop yields and prices. Under an optimistic "prosperity" scenario, these effects are greatly reduced. Read more in the new "Shock Waves" report.
The World's CO2 emissions grew 4.9% in 2010
That's the 3rd largest annual increase since 1990 (early estimates of 2011 and 2012 emissions show further global increases since 2010, but not quite as large). Nationally, China, the United States, India, Russia and Japan continue to be the top 5 emitters. It's also notable that in 2010 South Korea surpassed Canada in 8th place, and South Africa fell out of the top 10 with an emissions drop of almost 3 percent.