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Climate Change
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Climate change and environment
Ngày đăng: 28/03/2017Lượt xem: 1380Over the past 150 years, we’ve changed the balance of our planet by living beyond our means. We’ve burnt huge amounts of fossil fuels (such as coal, oil, gas), bred huge amounts of methane- producing livestock and cut down vast swathes of forests, which would naturally absorb carbon dioxide from the air.
Climate change is affecting our brilliant planet in lots of ways!
CLIMATE CHANGE AND FORESTS
Most people know how vital forests are – they soak up carbon dioxide, the main greenhouse gas responsible for global warming, and help regulate the world’s climate. They’re also home to countless plant and animal species. We’re working with communities, local governments and businesses to ensure the world’s forests are protected.
HOW FORESTS ARE AFFECTED BY CLIMATE CHANGE
Impacts vary in different kinds of forests.
Sub-Arctic boreal forests are likely to be particularly badly affected, with tree lines gradually retreating north as temperatures rise.
In tropical forests such as the Amazon, where there’s abundant biodiversity, even modest levels of climate change can cause high levels of extinction.
IMPACTS OF DEFORESTATION
When large areas of forest are destroyed – whether razed for commercial reasons or dried by a warming climate – it’s disastrous for the local species and communities that rely on them. It’s also bad for all life on Earth.
Dying trees emit their stores of carbon dioxide, adding to atmospheric greenhouse gases and setting us on a course for runaway global warming.
CLIMATE CHANGE AND WATER
Climate change is having serious impacts on the world’s water systems through more flooding and droughts. Warmer air can hold a higher water content, which makes rainfall patterns more extreme.
RIVERS AND LAKES
Rivers and lakes supply drinking water for people and animals - and are a vital resource for farming and industry.
Freshwater environments around the world are already under excessive pressure from drainage, dredging, damming, pollution, extraction, silting and invasive species.
Climate change - combined with these stresses - makes impacts worse. Extremes of drought and flooding will become more common, causing displacement and conflict.
MELTING GLACIERS
In mountainous regions, melting glaciers are impacting on freshwater ecosystems. Himalayan glaciers feed great Asian rivers such as the Yangtze, Yellow, Ganges, Mekong and Indus. Over a billion people rely on these glaciers for drinking water, sanitation, agriculture and hydroelectric power.
OCEANS AND SEAS
WHY ARE OCEANS IMPORTANT?
Oceans are vital ‘carbon sinks’ – meaning that they absorb huge amounts of carbon dioxide, preventing it from reaching the upper atmosphere.
But increased water temperatures and higher carbon dioxide concentrations than normal, which make oceans more acidic, are already having an impact.
IMPACTS ON OUR CORAL REEFS
Coral reefs are particularly at risk. Sensitive coral and algae that live on it are starved of oxygen, causing dramatic bleaching and possibly the eventual death of the coral.
If global warming remains on its upward path, by 2050 just 5% of Australia’s Great Barrier Reef – the world’s largest coral reef – will remain.
It’s not only a tragedy for wildlife: around half a billion people rely on fish from coral reefs as their main source of protein.
Source: https://www.wwf.orgCây dữ liệu:Dữ liệu liên quan:- Strengthening Institutional Capacity For Disaster Risk Management In Viet Nam Including Climate Change Related Risks (SCDM Phase II)
- Knowledge on Climate Smart Agriculture
- CLIMATE-SMART AGRICULTURE Sourcebook
- ASEAN Regional Guidelines for Promoting Climate Smart Agriculture (CSA) Practices
- Fao success Stories on Climate-Smart Agriculture
- The future of food and agriculture: Trends and challenges
- Evidence and Knowledge Gaps on Climate-Smart Agriculture in Vietnam
- Economics and Policy Innovations for Climate-Smart Agriculture
- Women farmers and resilience in the face of climate change
- FAO Success Stories on Climate-Smart Agriculture
- FAO Strategy on Climate Change
- Climate change and polar region
- Climate change adaptation measures
- Improving farmers’ practices towards cleaner hatcheries in Viet Nam
- Converting waste to cooking fuel in Vietnamese coastal communities
- Curbing the spread of cassava pink mealybug in the Greater Mekong Subregion
- Asia’s largest lagoon ecosystem now on sustainable course for the future
- Remarks by Ms. Louise Chamberlain, UNDP Country Director at the Green Growth Coordination Meeting - Reporting on the Implementation of the VGGS (2012-2016)
- What is climate-smart agriculture?
- Liên kết website
- Thăm dò ý kiến
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