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PEMANASAN GLOBAL
Ms. DIAH
PENGERTIAN
● Peristiwa meningkatnya suhu rata-
rata pada lapisan atmosfer dan
permukaan bumi
● Atau TERJADINYA PERUBAHAN
IKLIM
PENYEBAB
● Pada lapisan troposfer terjadi peristiwa alam (hujan, angin)
● Pada lapisan stratosfer (di atas troposfer) terdapat ozonosfer
● Guna Ozonosfer : pelindung permukaan bumi dari radiasi UV
APA SAJA PENYEBAB PEMANASAN GLOBAL ?
1. Kendaraan bermotor (menghasilkan gas karbon monoksida yg sangat
berbahaya bagi kesehatan manusia dan gas ini juga menyebabkan
efek rumah kaca)
2. Gas buangan industri (menyebabkan efek rumah kaca dan
berpengaruh pd kehidupan manusia karena asap buangan pabrik
mengeluarkan gas karbonmonoksida dan methana yg berbahaya)
3. Penggunaan CFC (Chloro Fluoro Carbons) – bahan kimia yg biasa
digunakan sbg peralatan rumah tangga seperti AC dan Kulkas yg
menimbulkan efek rumah kaca
4. Pembakaran hutan dan penebangan liar disertai dg peembakaran
lahan.
5. Gas Methana yg berasal dari rawa2 dan dari kotoran ternak
menyebabkan pemanasan global dan efek rumah kaca
EFEK RUMAH KACA (GREEN HOUSE)
1. TERJADINYA akibat
panas yg dipantulkan oleh
permukaan bumi yg
terperangkap oleh gas-
gas yang ada di atmosfir,
sehingga tidak bisa
diteruskan ke luar
angkasa , tetapi
dipantulkan lagi ke
permukaan bumi
2. Sehingga suhu udara bumi
semakin panas
PENYEBAB EFEK RUMAH KACA
1. Naiknya permukaan laut Hal ini disebabkan oleh naik nya suhu
udara di kutub akibat suhu di udara yang bertambah panas
2. Banjir – naiknya permukaan air laut ke garis pantai dan permukaan
daratan tertutup oleh air
3. Cuaca dan iklim tidak teratur contohnya musim kemarau yg
berkepanjangan dan musim hujan yg terus-menerus, dan badai
salju yg bertambah ekstrim
4. Beberapa spesies hewan jadi punah karena kehilangan tempat
tinggalnya. Contoh nya pinguin dan beruang kutub kehilangan
tempat tinggal akibat melelehnya es di kutub utara atau orang
hutan akibat dari pembakaran hutan
PENYEBAB EFEK RUMAH KACA
1. MENINGKATNYA GAS RUMAH KACA
● CO2
● CH4
● N20
● UAP AIR
● CFC
DAMPAK PEMANASAN GLOBAL
1. PERUBAHAN CUACA DAN IKLIM
2. KENAIKAN PERMUKAAN AIR LAUT
3. MENURUNKAN HASIL PERTANIAN (KEKERINGAN, BANJIR,
HAMA)
4. PENGARUH TERHADAP HEWAN DAN TUMBUHAN (KEPUNAHAN)
5. PENGARUH TERHADAP KESEHATAN MANUSIA DAN HEWAN
SOLUSI DAN PEMANASAN GLOBAL
1. Menggunakan kendaraan ramah lingkungan (sepeda dan jalan kaki)
2. Membuat ventilasi udara yg baik atau menggunakan kipas angin yg
lebih ramah lingkungan
3. Menerapkan konsep 3R (Reduce , Reuse, Recycle) dlm kehidupan
sehari-hari
4. Mengubah perilaku pribadi (hemat listrik, menanam pohon,
mengurangi penggunaan kendaraan bermotor)
5. Upaya kolektif (menggunakan energi alternatif)
Contohnya : biomassa , biogas, biofuel, angin, matahari
BISAKAH KITA MENGHENTIKAN GLOBAL WARMING
● Bumi. Tempat segala angan dan harapan umat manusia tinggal, kini
sedang memanas.
● Sains mencatat, bumi kita sedang mengalami kenaikan suhu yang
bisa dibilang... parah.
● Bahkan, tahun lalu tercatat sebagai tahun terpanas kedua dalam
sejarah manusia.
● Dan mengerikannya, enam suhu terpanas bumi yang pernah
tercatat, semuanya terjadi di dalam satu dekade belakangan.
● Mungkin, kalau engga dihentikan, kita akan menuju ke tahun-tahun
di mana bumi memiliki lebih banyak persoalan ketimbang harapan.
BISAKAH PEMANASAN GLOBAL DIHENTIKAN?
● Negara di dunia sudah sepakat kewajiban mengurangi emisi karbon
45% di tahun 2030 , 100% di tahun 2050 untuk menjaga suhu bumi
tidak naik 2℃ 𝑑𝑖 𝑎𝑘ℎ𝑖𝑟 𝑎𝑏𝑎𝑑 2100
● Hari ini bumi masih akan tetap panas dan apalagi kalau kita tidak
bertindak bisa saja suhu bumi akan lebih parah
● Bahkan pemanasan global juga ikut menyebarkan berbagai penyakit
seperti demam berdarah, malaria, tahun 2019-2021 adanya Covid
19
● PR KITA MASIH PANJANG INTINYA PEMANASAN GLOBAL
ITU TIDAK MUNGKIN KITA HENTIKAN TAPI SEKIRANYA
KITA SUDAH BERUSAHA MEMPERLAMBAT USAHA DAN
MENGURANGI GAS EMISI KARBON DI UDARA

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16. global warming

  • 2.
  • 3. PENGERTIAN ● Peristiwa meningkatnya suhu rata- rata pada lapisan atmosfer dan permukaan bumi ● Atau TERJADINYA PERUBAHAN IKLIM
  • 4. PENYEBAB ● Pada lapisan troposfer terjadi peristiwa alam (hujan, angin) ● Pada lapisan stratosfer (di atas troposfer) terdapat ozonosfer ● Guna Ozonosfer : pelindung permukaan bumi dari radiasi UV
  • 5. APA SAJA PENYEBAB PEMANASAN GLOBAL ? 1. Kendaraan bermotor (menghasilkan gas karbon monoksida yg sangat berbahaya bagi kesehatan manusia dan gas ini juga menyebabkan efek rumah kaca) 2. Gas buangan industri (menyebabkan efek rumah kaca dan berpengaruh pd kehidupan manusia karena asap buangan pabrik mengeluarkan gas karbonmonoksida dan methana yg berbahaya) 3. Penggunaan CFC (Chloro Fluoro Carbons) – bahan kimia yg biasa digunakan sbg peralatan rumah tangga seperti AC dan Kulkas yg menimbulkan efek rumah kaca 4. Pembakaran hutan dan penebangan liar disertai dg peembakaran lahan. 5. Gas Methana yg berasal dari rawa2 dan dari kotoran ternak menyebabkan pemanasan global dan efek rumah kaca
  • 6. EFEK RUMAH KACA (GREEN HOUSE) 1. TERJADINYA akibat panas yg dipantulkan oleh permukaan bumi yg terperangkap oleh gas- gas yang ada di atmosfir, sehingga tidak bisa diteruskan ke luar angkasa , tetapi dipantulkan lagi ke permukaan bumi 2. Sehingga suhu udara bumi semakin panas
  • 7. PENYEBAB EFEK RUMAH KACA 1. Naiknya permukaan laut Hal ini disebabkan oleh naik nya suhu udara di kutub akibat suhu di udara yang bertambah panas 2. Banjir – naiknya permukaan air laut ke garis pantai dan permukaan daratan tertutup oleh air 3. Cuaca dan iklim tidak teratur contohnya musim kemarau yg berkepanjangan dan musim hujan yg terus-menerus, dan badai salju yg bertambah ekstrim 4. Beberapa spesies hewan jadi punah karena kehilangan tempat tinggalnya. Contoh nya pinguin dan beruang kutub kehilangan tempat tinggal akibat melelehnya es di kutub utara atau orang hutan akibat dari pembakaran hutan
  • 8. PENYEBAB EFEK RUMAH KACA 1. MENINGKATNYA GAS RUMAH KACA ● CO2 ● CH4 ● N20 ● UAP AIR ● CFC
  • 9. DAMPAK PEMANASAN GLOBAL 1. PERUBAHAN CUACA DAN IKLIM 2. KENAIKAN PERMUKAAN AIR LAUT 3. MENURUNKAN HASIL PERTANIAN (KEKERINGAN, BANJIR, HAMA) 4. PENGARUH TERHADAP HEWAN DAN TUMBUHAN (KEPUNAHAN) 5. PENGARUH TERHADAP KESEHATAN MANUSIA DAN HEWAN
  • 10. SOLUSI DAN PEMANASAN GLOBAL 1. Menggunakan kendaraan ramah lingkungan (sepeda dan jalan kaki) 2. Membuat ventilasi udara yg baik atau menggunakan kipas angin yg lebih ramah lingkungan 3. Menerapkan konsep 3R (Reduce , Reuse, Recycle) dlm kehidupan sehari-hari 4. Mengubah perilaku pribadi (hemat listrik, menanam pohon, mengurangi penggunaan kendaraan bermotor) 5. Upaya kolektif (menggunakan energi alternatif) Contohnya : biomassa , biogas, biofuel, angin, matahari
  • 11. BISAKAH KITA MENGHENTIKAN GLOBAL WARMING ● Bumi. Tempat segala angan dan harapan umat manusia tinggal, kini sedang memanas. ● Sains mencatat, bumi kita sedang mengalami kenaikan suhu yang bisa dibilang... parah. ● Bahkan, tahun lalu tercatat sebagai tahun terpanas kedua dalam sejarah manusia. ● Dan mengerikannya, enam suhu terpanas bumi yang pernah tercatat, semuanya terjadi di dalam satu dekade belakangan. ● Mungkin, kalau engga dihentikan, kita akan menuju ke tahun-tahun di mana bumi memiliki lebih banyak persoalan ketimbang harapan.
  • 12.
  • 13.
  • 14.
  • 15. BISAKAH PEMANASAN GLOBAL DIHENTIKAN? ● Negara di dunia sudah sepakat kewajiban mengurangi emisi karbon 45% di tahun 2030 , 100% di tahun 2050 untuk menjaga suhu bumi tidak naik 2℃ 𝑑𝑖 𝑎𝑘ℎ𝑖𝑟 𝑎𝑏𝑎𝑑 2100 ● Hari ini bumi masih akan tetap panas dan apalagi kalau kita tidak bertindak bisa saja suhu bumi akan lebih parah ● Bahkan pemanasan global juga ikut menyebarkan berbagai penyakit seperti demam berdarah, malaria, tahun 2019-2021 adanya Covid 19 ● PR KITA MASIH PANJANG INTINYA PEMANASAN GLOBAL ITU TIDAK MUNGKIN KITA HENTIKAN TAPI SEKIRANYA KITA SUDAH BERUSAHA MEMPERLAMBAT USAHA DAN MENGURANGI GAS EMISI KARBON DI UDARA